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  • NIPPON STEEL & SUMITOMO METAL U.S.A., INC.New York 1251 Ave of the Americas, Suite 2320, New York, N.Y. 10020, U.S.A. TEL : 1-212-486-7150 FAX : 1-212-593-3049Chicago 900 North Michigan Av., Suite 1820, Chicago, Illinois 60611, U.S.A. TEL : 1-312-751-0800 FAX : 1-312-751-0345Houston 945 Bunker Hill, Suite 600, Houston, Texas 77024, U.S.A. TEL : 1-713-654-7111 FAX : 1-713-654-1261Mexico Calle de Ruben Dario 281 No.2101, Colonia Bosque de Chapultepec, Mexico, D. F. 11580, Mexico TEL : 52-55-5281-6123 FAX : 52-55-5280-0501

    NIPPON STEEL & SUMITOMO METAL Empreendimentos Siderurgicos Ltda.So Paulo Avenida Paulista 2300, 18 andar Conj. 181 e 183 CEP 01310-300, So Paulo, SP, Brasil TEL : 55-11-3563-1900 FAX : 55-11-3563-1901BeloHorizonte Av. do Contorno, 6594-13 andar-Sala1302, Lourdes, BeloHorizonte-MG, CEP 30110-044, Brasil TEL : 55-31-2191-4000 FAX : 55-31-2191-4880

    Nippon Steel & Sumitomo Metal European OfficeDuesseldorf Am Seestern 8, 40547 Duesseldorf Federal Republic of Germany TEL : 49-211-5306680 FAX : 49-211-5961163

    Nippon Steel & Sumitomo Metal Dubai OfficeDubai (PO Box : 18347) JAFZA16, Office No.613 Jebel Ali Free Zone, Dubai, U.A.E. TEL : 971-4-887-6020 FAX : 971-4-887-0206

    NIPPON STEEL & SUMITOMO METAL Australia Pty. LimitedSydney Level 5, No.20 Hunter Street, Sydney, N.S.W. 2000, Australia TEL : 61-2-8036-6600 FAX : 61-2-9221-5277

    NIPPON STEEL & SUMITOMO METAL Consulting (Beijing) Co., Ltd.Beijing Room No.5002, Chang Fu Gong Center, Jian Guo Men Wai Da Jie 26, Chaoyang District, 100022 Beijing, P.R. China TEL : 86-10-6513-8593 FAX : 86-10-6513-7197Shanghai Room No.808, UNITED PLAZA, 1468 Nanjing Road West, Jingan District, 200040 Shanghai, P.R. China TEL : 86-21-6247-9900 FAX : 86-21-6247-1858Guangzhou Room 1402 G.T.Land Plaza D Tower, No8 Zhujiang West Road, Zhujiang New Town, Guangzhou, 510623, China TEL : 86-20-8386-8178 FAX : 86-20-8386-7066

    NIPPON STEEL & SUMITOMO METAL Southeast Asia Pte. Ltd.Singapore 16 Raffles Quay #17-01 Hong Leong Building, Singapore 048581 TEL : 65-6223-6777 FAX : 65-6224-4207

    PT. NIPPON STEEL AND SUMITOMO METAL INDONESIAJakarta Sentral Senayan II 201-2C Ground floor, Jalan Asia Afrika No.8, Gelora Bung Karno-Senayan, Jakarta Pusat 10270, Indonesia TEL : 62-21-290-39210 FAX : 62-21-290-39211

    NIPPON STEEL & SUMITOMO METAL (Thailand) Co., Ltd.Bangkok 909, Ample Tower, 14th Floor, Bangna-Trad KM.4 Road, Khwang Bangna, Khet Bangna, Bangkok 10260, Thailand TEL : 66-2-744-1480 FAX : 66-2-744-1485

    NIPPON STEEL & SUMITOMO METAL VIETNAM Co., Ltd.Vietnam Room 2001, 20th Floor, SUNWAH TOWER, 115 Nguyen Hue Blvd, Ben Nghe Ward, Dist.1, Ho Chi Minh City, Vietnam TEL : 84-8-3914-7016 FAX : 84-8-3914-7018

    NIPPON STEEL & SUMITOMO METAL India Private LimitedNew Delhi 404-407, 4th Floor DLF South Court, District Centre, Saket, New Delhi 110017, India TEL : 91-11-4763-0000 FAX : 91-11-4763-0001

    http://www.nssmc.com/

    261 Marunouchi, Chiyodaku,Tokyo 1008071 JapanTel: +81368674111

    STEEL PIPE PILES

    2014, 2016 NIPPON STEEL & SUMITOMO METAL CORPORATIONK011en_03_201609f

    STEEL PIPE PILES

  • We can provide steel foundation solu tions from global offices steel pipe piles from global factories

    THE INSPIRING NEW STEEL FOUNDATION SOLUTIONS

    Design proposal

    Proposal of construction method

    Proposal of methodto prevent corrosion

    Instruction for fabrication

    Based on the design conditions obtained from the customers and our numerous design records,

    we can provide an optimum design plan.

    Based on past achievements, we can provide various recommendations, including those

    regarding the selection of the most-optimum construction machine according to soil

    conditions.

    With long-standing experience, we are able to provide various kinds of recommendations.

    We have prepared manuals for fabrication and can provide instruction at the site.

    Japan

    Vietnam

    Vietnam

    Nippon Steel & SumikinPipe Vietnam Co., Ltd. [NPV]

    Kashima Works

    Kimitsu Works

    Yawata Works

    Hasaki R&D Center

    Reseach & Engineering Center

    Offices with construction material engineers

    Our overseas offices

    Steel pipe piles mills San PauloBelo Horizonte

    New York

    Chicago

    Houston

    Tokyo Beijing

    Shanghai

    Guangzhou

    Jakarta

    Singapore

    BangkokNew DelhiDubai

    Dsseldorf

    Sydney

    Mexico

    Amagasaki R&D Center

    STEEL PIPE PILES 1

  • NSSMCs Solution Proposal for Steel Foundations

    Steel Pipe Piles

    Steel Pipe Sheet Piles

    NS ECO-PILETM

    TNXTM method

    Gantetsu pileTM

    Gyropress methodTM

    Submerged Strut method

    RS plusTM

    Jacket technology

    Steel Pipe Sheet Pile Foundation

    Sat-in Pile Foundation

    Combined Wall

    Slip Layer Pipe Pile

    Mechanical Joint

    Anticorrosion System

    Pages 8

    Pages 8

    Pages 14

    Pages 16

    Pages 17

    Pages 18

    Pages 20

    Pages 22

    Pages 23

    Pages 24

    Pages 26

    Pages 28

    Pages 31

    Pages 31

    Pages 32

    PageHard ground Soft ground

    Environmentally friendly

    Quay wall renovationSaving labor at actual sites

    Railways & roadsPorts/Harbors

    & riversBuilding foundations Plant foundationsNarrow ground area

    Soil retainers serving as bearing piles

    Deep underground

    Needs Application

    QYes

    Yes

    Q

    Yes

    Q

    Q

    Yes

    We require pile construction in a narrow ground area. Is an applicable method available?

    We are seeking a method that has functions featuring bearing piles and retaining walls. What do you propose?

    The NS ECO-PILETM and Gyropress methodTM require only small workspaces for construction. These methods enable construction in narrow ground areas, such as areas next to existing structures. They are also applicable for construction sites with restricted overhead clearance, such as sites under elevated bridges and overhead lines.

    QYesWe want to drive piles into hard ground. Is a good solution available?

    The Gyropress methodTM, in which steel pipe piles with cutting bits installed at the tip of the steel pipes are rotationally pressed in, allows the piles to penetrate hard ground and obstacles (e.g., reinforced concrete), being appropriate for hard ground, as well.

    The RS plusTM method, in which vibratory hammers equipped with high-pressure water jets are used, features excellent performance in excavating the ground, thus being appropriate for hard ground areas.

    QYesIs a pile method available that is appropriate for soft ground?

    The NS ECO-PILETM method, in which the bearing capacity at the tip of piles is large, is appropriate for soft ground where skin friction cannot be substantially expected.

    Steel Pipe Sheet Pile Foundations involve a method in which steel pipe sheet piles are combined and installed in the shape of an enclosure so that behavior of the sheet piles is unified, from which high horizontal resistance and high vertical-bearing capacity are generated, applicable even for soft ground.

    The TNXTM method, in which expanded foot protection sections constructed at the tip of piles are unified with steel pipes, provides high vertical-bearing capacity, being appropriate for soft ground.

    The Slip Layer Pipe Piles (piles resistant to negative friction) ensures a reduction of negative friction in soft ground.

    The Submerged Strut method was developed to satisfy needs for aseismic retrofitting or the deepening of existing quay walls. The method reduces the size of workspaces and the length of construction periods, which contributes to economical construction.

    The Sat-in Pile Foundation, in which the pillars, etc., of superstructures are directly connected to the foundation piles and in which concrete footing can thus be omitted, can reduce costs and construction periods at actual sites.

    The Jacket technology is used for marine structures in which steel pipe truss foundations are combined with superstructures made from steel. The method makes construction speedy thanks to prefabrication.

    Mechanical Joints utilize a method that takes the place of on-site welding of steel pipe piles and steel pipe sheet piles. Simplified jointing work and construction management ensures joint quality, reduces construction periods and workloads, and makes all-weather construction possible.

    Steel Pipe Sheet Pile Foundations utilize a method in which steel pipe sheet piles are combined and installed in the shape of an enclosure, which functions as a temporary cofferdam or retaining wall simultaneously with bearing piles.

    The Combined Wall method, in which steel sheet piles and steel pipe sheet piles are combined, performs the function of a retaining wall and the bearing function of vertical force, thanks to steel pipe sheet piles.

    Q

    Yes

    We want to drive piles into a deep bearing layer or ground areas without a distinct bearing layer. Can you suggest a good solution?

    The Steel Pipe Pile and Steel Pipe Sheet Pile methods, which are easy to be joined by welding, are appropriate for ground areas with deeper support layers.

    Gantetsu pileTM is a composite pile that feature low steel pipe deformability along with excellent soil cement frictional resistance. They can be designed as friction piles.

    We are seeking a method appropriate for improving quay walls and aseismic retrofitting. What are your proposals?

    We want to save labor at construction sites and to speed up construction. Can you suggest a good solution?

    QYes The NS ECO-PILETM and Gyropress methodTM have realized construction without producing waste soil

    by introducing the rotatory press-in method. The NS ECO-PILETM, Gyropress methodTM, TNXTM method, and Gantetsu pileTM are environmentally

    friendly methods that enable low-noise and low-vibration construction.

    We want to employ an environmentally friendly method. What is your recommendation?

    Railways& roads

    Ports/Harbors& rivers

    Buildingfoundations

    Plantfoundations

    NSSMCs Solution Proposal for Steel Foundations

    Steel Pipe Piles

    Steel Pipe Sheet Piles

    NS ECO-PILETM

    TNXTM method

    Gantetsu pileTM

    Gyropress methodTM

    Submerged Strut method

    RS plusTM

    Jacket technology

    Steel Pipe Sheet Pile Foundation

    Sat-in Pile Foundation

    Combined Wall

    Slip Layer Pipe Pile

    Mechanical Joint

    Anticorrosion System

    Pages 8

    Pages 8

    Pages 14

    Pages 16

    Pages 17

    Pages 18

    Pages 20

    Pages 22

    Pages 23

    Pages 24

    Pages 26

    Pages 28

    Pages 31

    Pages 31

    Pages 32

    PageHard ground Soft ground

    Environmentally friendly

    Quay wall renovationSaving labor at actual sites

    Railways & roadsPorts/Harbors

    & riversBuilding foundations Plant foundationsNarrow ground area

    Soil retainers serving as bearing piles

    Deep underground

    Needs Application

    QYes

    Yes

    Q

    Yes

    Q

    Q

    Yes

    We require pile construction in a narrow ground area. Is an applicable method available?

    We are seeking a method that has functions featuring bearing piles and retaining walls. What do you propose?

    The NS ECO-PILETM and Gyropress methodTM require only small workspaces for construction. These methods enable construction in narrow ground areas, such as areas next to existing structures. They are also applicable for construction sites with restricted overhead clearance, such as sites under elevated bridges and overhead lines.

    QYesWe want to drive piles into hard ground. Is a good solution available?

    The Gyropress methodTM, in which steel pipe piles with cutting bits installed at the tip of the steel pipes are rotationally pressed in, allows the piles to penetrate hard ground and obstacles (e.g., reinforced concrete), being appropriate for hard ground, as well.

    The RS plusTM method, in which vibratory hammers equipped with high-pressure water jets are used, features excellent performance in excavating the ground, thus being appropriate for hard ground areas.

    QYesIs a pile method available that is appropriate for soft ground?

    The NS ECO-PILETM method, in which the bearing capacity at the tip of piles is large, is appropriate for soft ground where skin friction cannot be substantially expected.

    Steel Pipe Sheet Pile Foundations involve a method in which steel pipe sheet piles are combined and installed in the shape of an enclosure so that behavior of the sheet piles is unified, from which high horizontal resistance and high vertical-bearing capacity are generated, applicable even for soft ground.

    The TNXTM method, in which expanded foot protection sections constructed at the tip of piles are unified with steel pipes, provides high vertical-bearing capacity, being appropriate for soft ground.

    The Slip Layer Pipe Piles (piles resistant to negative friction) ensures a reduction of negative friction in soft ground.

    The Submerged Strut method was developed to satisfy needs for aseismic retrofitting or the deepening of existing quay walls. The method reduces the size of workspaces and the length of construction periods, which contributes to economical construction.

    The Sat-in Pile Foundation, in which the pillars, etc., of superstructures are directly connected to the foundation piles and in which concrete footing can thus be omitted, can reduce costs and construction periods at actual sites.

    The Jacket technology is used for marine structures in which steel pipe truss foundations are combined with superstructures made from steel. The method makes construction speedy thanks to prefabrication.

    Mechanical Joints utilize a method that takes the place of on-site welding of steel pipe piles and steel pipe sheet piles. Simplified jointing work and construction management ensures joint quality, reduces construction periods and workloads, and makes all-weather construction possible.

    Steel Pipe Sheet Pile Foundations utilize a method in which steel pipe sheet piles are combined and installed in the shape of an enclosure, which functions as a temporary cofferdam or retaining wall simultaneously with bearing piles.

    The Combined Wall method, in which steel sheet piles and steel pipe sheet piles are combined, performs the function of a retaining wall and the bearing function of vertical force, thanks to steel pipe sheet piles.

    Q

    Yes

    We want to drive piles into a deep bearing layer or ground areas without a distinct bearing layer. Can you suggest a good solution?

    The Steel Pipe Pile and Steel Pipe Sheet Pile methods, which are easy to be joined by welding, are appropriate for ground areas with deeper support layers.

    Gantetsu pileTM is a composite pile that feature low steel pipe deformability along with excellent soil cement frictional resistance. They can be designed as friction piles.

    We are seeking a method appropriate for improving quay walls and aseismic retrofitting. What are your proposals?

    We want to save labor at construction sites and to speed up construction. Can you suggest a good solution?

    QYes The NS ECO-PILETM and Gyropress methodTM have realized construction without producing waste soil

    by introducing the rotatory press-in method. The NS ECO-PILETM, Gyropress methodTM, TNXTM method, and Gantetsu pileTM are environmentally

    friendly methods that enable low-noise and low-vibration construction.

    We want to employ an environmentally friendly method. What is your recommendation?

    Railways& roads

    Ports/Harbors& rivers

    Buildingfoundations

    Plantfoundations

    2 STEEL PIPE PILES STEEL PIPE PILES 3

  • 4 STEEL PIPE PILES STEEL PIPE PILES 7

    Leading the New Era on Steel Pipe Pile with Pioneer Spirits

    Notice: While every effort has been made to ensure the accuracy of the information contained within this publication, the use of the information is at the readers risk and no warranty is implied or expressed by Nippon Steel & Sumitomo Metal Corporation with respect to the use of the information contained herein. The information in this publication is subject to change or modifi cation without notice. Please contact the Nippon Steel & Sumitomo Metal Corporation offi ce for the latest information. Please refrain from unauthorized reproduction or copying of the contents of this publication.The names of our products and services shown in this publication are trademarks or registered trademarks of Nippon Steel & Sumitomo Metal Corporation , affi liated companies, or third parties granting rights to Nippon Steel & Sumitomo Metal Corporation or affi liated companies. Other product or service names shown may be trademarks or registered trademarks of their respective owners.

    Jacket technology

    Steel Pipe Sheet Pile Foundation

    Gyropress methodTM NS ECO-PILETM

    TNXTM method

    Combined Wall

    Gantetsu pileTM

    TB piles

    Sat-in Pile Foundation

    Steel Pipe Sheet Piles

    RS plusTM

    Submerged Strut method

    Anticorrosion System

    Pages 23

    Pages 24

    Pages 18

    Pages 14

    Pages 16

    Pages 28

    Pages 18

    Pages 11

    Pages 31

    Pages 26

    Pages 8

    Pages 22

    Pages 20

    Pages 32

    The steel pipe piles of Nippon Steel & Sumitomo Metal are used in many fields and have acquired high market acceptance due to their excellent product quality and construction efficiencies that derive from their use.

    Nippon Steel & Sumitomo Metal, drawing a wealth of rolling, fabrication and construction methods in this fields, which have also won for the company a high reputation.

    Based on an accumulation of technical expertise, Nippon Steel & Sumitomo Metal has developed and placed on the market solution proposal using all our available products at a maximum.

    Nippon Steel & Sumitomo Metal will continue its efforts to develop novel products that bring the properties of pipe piles into full play and to respond to more stringent and diversifying user needs in the future.

    THE INSPIRING NEW STEEL FOUNDATION SOLUTIONS ............ 1 NSSMCs Solution Proposal for Steel Foundations ............. 2Steel Pipe Piles ..................................................................... 8Steel Pipe Sheet Piles .......................................................... 8Impact hammer method ..................................................... 12Vibratory hammer method ................................................. 13NS ECO-PILETM ................................................................... 14TNXTM method ..................................................................... 16Gantetsu pileTM .................................................................... 17Gyropress methodTM ........................................................... 18Submerged Strut method ................................................... 20RS plusTM ............................................................................. 22Jacket technology ............................................................... 23Steel Pipe Sheet Pile Foundation ...................................... 24Sat-in Pile Foundation ........................................................ 26Combined Wall ................................................................... 28Slip Layer Pipe Pile ............................................................ 31Mechanical Joint ................................................................ 31Anticorrosion System ......................................................... 32Production Process ............................................................ 34Spiral Welded Steel Pipe .................................................... 36Production Range ............................................................... 37Accessories ........................................................................ 38Junction Types for Steel Pipe Sheet Piles ......................... 39Sectional Properties ........................................................... 40

    Contents

    Slip Layer Pipe Pile

  • STEEL PIPE PILES 9

    Features

    Application of steel pipe piles

    Steel pipe piles and steel pipe sheet piles are widely used in ports/harbors (piers, seawalls, and breakwaters), urban civil engineering (earth-retaining walls and cofferdams), bridges (foundations for steel pipe sheet pile foundations), and other applications, along with widening their applications due to enlargement of the structures sizes, growth of water depth for the structures and increase in construction work at sites where the bearing strata are deep under thick soft ground.

    8 STEEL PIPE PILES

    Percussionmethod

    Vibratory hammer method

    Inner excavation method

    Steel pipe and soil-cement hybrid

    pile method

    Rotating pile method

    Cast-in-place pile method

    Reduction in construction waste soil Effect on groundwater and soil Recyclability Low vibration and noise Durability and earthquake resistance

    :optimum, :highly suitable, :suitable, :less suitable

    Large vertical-bearing capacity1By driving the pipe piles into firm bearing layers, they exhibit a large vertical-bearing capacity.

    High bending strength2Steel pipe piles with high stiffness and high bending strength enable resistance to considerable horizontal force during earthquakes.

    Excellent environmental performance3Piles with small section areas realize less earth removal and low vibration and noise.

    Custom fit for each structure4Various pile lengths, diameters, and thicknesses contribute to economical design.

    Easy production of longer piles and jointing piles5Longer products can be manufactured, and, as joining piles by welding is also easy, it is possible to apply these to deep water and deep underground structures.

    Easy jointing with superstructures6Jointing with upper concrete structures is easy, using reinforcing steel bars at the top of piles.

    Easy handling7Steel thats light and tough contributes to easy handling and transport.

    Steel Pipe Piles

    Steel Pipe Sheet Piles

  • Bead width:8

    Bead width:8

    Effective width of junction 247.8mm Unit mass 83.6kg/m (t=11) Unit mass 69.4kg/m (t=9)

    Reinforced concrete

    Steel pipe-reinforced concrete

    Joint

    Pile head joint

    10 STEEL PIPE PILES STEEL PIPE PILES 11

    Application of steel pipe sheet piles Application of pipe piles to reinforce the head of cast-in place concrete pile.

    TB pilesCast-in-place concrete piles and steel pipe composite piles with excellent earthquake-resistance: Steel pipes with inner ribs are used at the pile heads, where large bending moment and shear force work, to make steel pipe-reinforced concrete pile.

    Steel pipes as casing pipes

    Cast-in-place concrete piles

    Steel Pipe Piles / Steel Pipe Sheet Piles

  • 12 STEEL PIPE PILES STEEL PIPE PILES 13

    Impact hammer method Example of a layout of construction machines

    Hydraulic hammer

    Example of construction using the percussion method Example of construction using the vibratory hammer method

    Example of construction using the vibratory hammer method combined with a water jet

    Features

    A conventional method used with many track records

    Bearing capacity can be checked during installation work

    Excellent workabilities and high economical effi ciency

    No earth removal during installation

    2

    1

    3

    4

    Features

    High driving speed, excellent workability a n d e c o n o m i c a l effi ciency

    Crane work possible both on the ground and on the vessel

    Combined with water jet, applicable for hard ground

    No earth removal during construction work

    2

    1

    3

    4

    Vibratory hammer method20(m)

    10

    00 10 20 30(m)

    A construction method that utilizes hydraulic hammers or diesel hammers A construction method in which vibratory hammers are used to forcibly apply vibration to piles to temporality reduce pile shaft friction and edge indentation resistance during installation.

    Plank (for covering the ground)

    Plank (for covering the ground)

    Crawler crane

    Pipe piles

    Backhoe

    Pile driver

    Base machine

    Base machine

    Control unit

    Control unit

    Vibratory hammer

    Vibratory hammer

    Motor generator

    Motor generator

    Steel pipe pile

    Steel pipe pile

    High-pressure hose

    Water tank Water jet cutter

    Submersiblepump

  • 14 STEEL PIPE PILES STEEL PIPE PILES 15

    Featuares

    Examples of applications

    Design method

    Construction method

    Smooth penetration into the ground is possible by wedging the blades working to push up the soil and its reaction force used as a driving force. In addition, the bottom-expansion effect of the blades exercises excellent bearing capacity when being pushed in and pulled out.

    Examples of advantages of application Reduction in environmental risks

    Application scope

    Pile diameterPile lengthApplicable

    ground

    Bearing layer

    ::

    :

    :

    4001,600mmUp to approximately 80 m

    Sand, clay, gravel with a diameter of a third or less of Dp and 300 mm or less, hardpans, and weathered rocksSand, gravel, and weathered granite

    In NS ECO-PILETM construction, casing rotator, etc., are used. In construction management, the arrival of all piles to the bearing layer is checked based on construction torque.Construction torque is measured on a real-time basis using a construction management system.

    Example of construction Construction management system Prevention of pollution in the area around the station Prevention of pollution in the surrounding area Cost reduction by using a batter pile

    Possibility of work in a narrow area

    Batter pile construction

    Construction close to road foundations Construction close to railway tracks

    Features

    Eco-friendly piling methodLow noise and low vibration, no waste soil, no ground pollution

    High reliability and qualityLarge bearing capacity and pulling resistance capacity, thanks to the helical blade

    Highly applicable to severe construction conditionsSmall area, nearby existing structure, requirement for small foundations

    2

    1

    3

    Reduction in overall costs

    Difcult to pull out and remove a pipe after construction

    Vibration and noise generated

    Concern over water pollution due to cement milk, etc.

    No need to worry about water pollution

    Low-vibration andlow-noise method

    Concern over trafc jams due to an increase in the number of construction vehicles

    Surplus soil from construction work

    Zero surplus soil

    Significant reduction in the number of construction vehicles

    Friendly to the surrounding environment

    Possible to pull out and remove a pipe through counter rotation

    SPT-N Torque Installation Axial time force

    RotationReaction

    forceReaction force

    Press-in

    Overview of press-in rotation

    NS ECO-PILETMThe NS ECO-PILETM is a method in which steel pipes with helical blades installed at the tips are rotated and pressed in.

  • Features & Advantages

    16 STEEL PIPE PILES STEEL PIPE PILES 17

    The TNXTM method is an environmentally friendly method in which a foot protection section that expands at the pile tip and a steel pipe work together in resisting vertical load, exercising high bearing capacity.

    The Gantetsu pileTM (steel pipe-reinforced soil cement composite pile) method involves composite piles consisting of steel pipes with outer ribs and soil cement that is formed by pouring cement milk into ground and through mixing & agitation.

    Features & Advantages

    Steel pipes with outer ribs are durably combined with the solidifi ed substance, exercising excellent vertical and horizontal bearing capacity.

    An environmentally friendly construction method that produces less earth removal, less noise, and less vibration.

    Foot protection at the pile tip exercises high bearing capacity in a stable way.

    Hydraulic control of the expandable excavation head at the tip enables a foot protection section as intended in the design.

    A method of a steel pipe pile with expanded foot protection at the tip with low noise, low vibration, and less earth removal.

    The diameter can be expanded to double the pile size.

    Example of formation at the tip of a pile(A turned-up cut sample with a pile diameter of 1,400 mm and a steel pipe diameter of 1,000 mm)

    Exp

    and

    ed fo

    ot

    pro

    tect

    ion

    sect

    ion

    Installation proceduresSimultaneous installation method (inner excavation method)

    Expandable excavation head

    Pile core set

    Excavation of the pile shaft Press-in and installation of the pile

    Primary excavation

    Injection of foot protection liquid Pulling out and

    collecting the excavator

    Construction completion

    Expansion of the blades

    Steel pipe Vertical bearing capacity Lateral resistance of pile

    Bending

    Gen

    eral

    pile

    sec

    tion

    Pile

    tip

    Transmission of the load acting on the pile head

    The horizontal load is transmitted to the ground via the solidied substance in the diameter range of the solidied substance.

    A steel pipe exercises high toughness during an earthquake.

    Outer ribs of the steel p ipe t ransmi t the load to the solidied substance. The outer s u r f a c e o f t h e solidied substance then transmits the load to the ground as a frictional force.

    The steel pipe and the solidied substance move together due to the outer ribs of the steel p ipe and the metal adhered to the tip (inner surface).

    Transmit the load to the ground as the frictional force of the outer surface of the solidied substance and as a compressive force of the tip.

    Mouth pipe setPile core setForming a solidied

    substance Embedding a steel pipe

    Forming the tip

    Fixing the steel pipePulling out the rod and head.Construction

    completion (Pulling out the mouth

    pipe.)

    Upper structure (concrete)

    Steel pipe

    Impeller

    Co-rotationprevention blade

    Steel pipe with outer ribs

    Rod with a stabilizer(The gap between the steel pipe and rod is maintained.) Solidi ed substance

    Expandableexcavation head

    1

    2

    1

    2

    3

    TNXTM methodThe composite piles that can be designed as friction pilesExpanded foot protection steel pile method

    Gantetsu pileTM

  • 18 STEEL PIPE PILES STEEL PIPE PILES 19

    In the Gyropress methodTM, steel pipe piles equipped with cutting bits at the tip of them are pressed-in in a rotational manner one after another in a line.This way, the method constructs wall structures such as river revetments and road retaining walls.

    Examples of applications

    A press fit to the hard ground is possible.

    This is the best-suited installation method for construction sites without ample space, such as narrow ground areas and workspaces with limited overhead clearance.

    Rotary press-in is appropriate for construction under conditions in which vibration or noise needs to be suppressed.

    A press-in to the hard ground is possible

    This is the best-suited installation method for construction sites without ample space, such as narrow ground areas and workspaces with limited overhead clearance.

    2

    1

    1

    2

    3

    During the Press-in Work

    Press-in Force

    Gyration Force

    Gyropress Force

    Reaction Force

    Reaction Base

    After Completion

    After the Press-in Work

    GYRO PILERThe bit attached at the tip can cut and penetrate the reinforcing steel bars of an existing reinforced concrete structure through rotationally press-in.

    In the Combi Gyro method, the excellent workability of Gyropress methodTM and Hat-type steel sheet piles with excellent water-shielding performance are combined, providing rational and highly economical wall structures.

    Sa fe i ns ta l l a t i on method without the risk of toppling, etc.; installation close to existing structures is possible.

    For Hat-type steel sheet piles, see our steel sheet piles brochure.

    Easy installation at a place with limitation in overhead clearance.

    Installation in a narrow area is possible because the machine is small in size.

    A batter pile can be installed.

    Combi Gyro

    Gyropress methodTM and Combi Gyro method have been developed by Nippon Steel & Sumitomo Metal Corporation and

    Giken Seisakusho Co.,Ltd.

    Features & Advantages

    Self-walking rotary press-in method for tubular piles with tip bits

    Gyropress methodTM

    Plain viewHat-type sheet piles

    Steel pipes

  • 20 STEEL PIPE PILES STEEL PIPE PILES 21

    1

    2

    In the submerged strut method, a foot protection-type rigid-frame structure consisting of steel pipe piles and steel pipe sheet piles is reinforced with submerged strut members in the seawater. The method can be applied to river revetments, quay walls, and breakwaters, etc.

    Installing steel pipe sheet piles

    Pouring concrete

    Installing steel pipe piles

    Injecting grout into panel points

    Attaching submerged strut members

    Improvement work of the quay wall in the central quay area of H port

    -8 m quay wall of M port

    Landfill and completion

    Panel point (mechanical grout joint)

    Front steel pipe pile

    Seabed

    Steel pipe sheet pile wall

    Submerged strut member

    Upper accouplement

    Upper connection

    Backfilling material

    Filling soil on the back

    Examples of applications

    Improved structure performance Speedy construction is possible

    Space-saving construction is possible

    The placed diagonal member converts the horizontal external force into axial force.

    A rational structure that uses the grounds vertical and horizontal bearing capacity in an effective way.

    Increase in earthquake-resistance enables applications in deep-water structures.

    The number of piles and the cross-sectional area of piles can be reduced.

    A reduction in the number of piles and cross-sectional area improves construction ef ciency.

    The use of members manufactured at factories simplifi es construction work.

    Soil improvement can be omitted, or reduced.

    The improved performance of the structure makes it possible to reduce the number of piles used. Further, using the prefabricated structural members, reduced structure occupancy width, and reduction in the soil improvement area, speedy and space-sav ing construction is possible.

    Applicable to construction in which quay walls are to be deepened or reinforced while facilities behind river revetments are left untouched, as well as to aseismic retrofi tting of quay walls.

    Steel pipe sheet piles Steel pipe piles

    Pouring concrete Injecting grout

    Submerged strut members

    Step comes before Step in some cases.

    Back retaining pile is not required, which reduces the structure occupancy width.

    Features

    Conversion into the axial force that pushes inward

    Submerged strut member

    Steel pipe pile

    Tie rod

    Steel pipe pile

    Steel pipe sheet pile

    Soil improvement area = large

    Required width = large Required width = small

    Soil improvement area = small

    Submerged strut member

    Steel pipe piles

    Lateral resistance of pile

    Vertical bearing capacity

    Applied external force

    Submerged Strut methodThe economical construction method using submerged strut members in the seawater

  • Without supplementary construction methods, penetration through a hard intermediate layer and embedding in a hard bearing layer are possible, which can reduce construction costs and periods.

    Bulbs constructed by cement milk injection at the pile tips can realize high bearing capacity. In addition, filling cement milk onto the sidewall of piles can realize stable horizontal resistance.

    In the RS plus method, vibratory hammers equipped with high-pressure water jets are used. The method features excellent performance in excavating the ground and assists in driving piles securely into the bearing layer.

    Overview of a pile

    Slippage stop bar Outer rib plate

    Inner rib plate

    Steel pipe pile

    Upper structure (concrete)

    Soil cement(lling of cement milk)

    Soil cement foot protection section

    Example of an attached inner rib plate

    Harbor line of the Port of Iwakuni

    Elevator tower of the Shinminato Ohashi of the Port of Fushiki-Toyama

    Quay wall of the Port of Karatsu

    Example of attached outer rib plates

    Expanded foot protection bulb using the outer rib plates

    Expanded foot protection section using soil cement

    RS plus method has been developed by Independent Administrative Institution Port and Airport Research Institute(PARI),

    Nippon Steel & Sumitomo Metal Corporation and Chowa Kogyo Co.,Ltd.

    Intermediate layer

    Bearing layer

    22 STEEL PIPE PILES STEEL PIPE PILES 23

    1

    2

    Jacket piers and seawalls are offshore structures integrating pipe and tube truss foundations and steel upper works.

    Examples of applications

    Jacket for pier at Runway D of Haneda Airport

    Jacket for taxiway of Runway D at Haneda Airport

    Seawall(-16m) jacket at Tobishima Warf, Nagoya port

    Beakwater at Uramoto fishing port

    View of Haneda Airport

    Intermediatelayer

    Bearinglayer

    Features

    Features

    Examples of applications

    Have superior earthquake resistance and enable rapid construction with prefabrication.

    Applicable to artificial ground bases for runways,container wharves, seawalls designed to improve earthquake resistance, deep-water bulk piers, and the refurbishment of deteriorating piers.

    1

    2

    RS plusTMThe method using vibratory hammers equipped with high-pressure water jets

    Jacket technologyThe method to make construction speedy

  • 24 STEEL PIPE PILES STEEL PIPE PILES 25

    A steel pipe sheet pile foundation is constructed by combining and installing steel pipe sheet piles in an enclosure shape. This can also be used for temporary cofferdams.

    Foundations possible to be used both for temporary cofferdams and for permanent foundations can reduce construction periods and costs.

    A group of steel pipe sheet piles moves together, which can provide high horizontal resistance and vertical bearing capacity, along with reducing the occupied area at the same time.

    Using the interlocks of high shear strength can further reduce the size of foundations. The foundation can also be used for aseismic retrofitting of bridges.

    Foundations can be used both for temporary cofferdams and for permanent foundations

    Reduction in the occupied area

    Using interlocks of high shear strength can reduce the size of foundations3

    1

    2

    3

    Steel pipe sheet pile foundations are more rigid than pile foundations. The size of foundations can be reduced, which in turn reduces earth removal by construction and construction period.

    If the shape of foundations is determined depending on displacement, using interlocks with high shear capacity can reduce the size of planes.

    Appling this junction realize steel weight 35% less compared to normal-type junctions in Tokyo gate bridge project

    Features

    Trial calculation by us.

    Connection between Top Slab and Steel Pipe Sheet Pile

    Examples of applications

    NS StudsNS stud method has achieved full penetration welding of long and large-diameter deformed rebar to steel tubes with automatic welding. This was previously assumed to be impossible with conventional stud installation.

    Constructing the pile cap and inner excavation

    Removing the temporary cofferdam

    Nhat Tan Bridge in Vietnam Photo provided by Sumitomo Mitsui Construction Co., Ltd

    Perspective of Tokyo Gate BridgeBureau of Port and Harbor, Tokyo Metropolitan Government

    Waling

    Outer steel pipe sheet piles

    Vibratory hammer(for building)

    Timbering

    Connect the pile cap

    Filled concrete

    Crawler crane

    Example of the shape ofa steel pipe sheet pile joint

    (P-P joint: 165.2 mm ( ) 11 mm (t))

    Foundation structure

    Pile cap connection

    Strut

    Paved sand

    Center picked single pile

    Top slab

    Underwater cutting section

    Precut section

    Bottom concrete

    Installing steel pipe sheet piles using various methods, such as vibratory hammering and inner excavation

    Shape drawing

    Cast-in-place pile Steel pipe sheet pile foundation

    30,0

    00

    14,400

    14,4

    00

    1,200

    30,0

    00

    7,500

    800

    Foundation area 207.4m2 44.2m2

    Occupancy area Foundation area + temporary cofferdam area Foundation area

    Item

    Conventional interlockHigh-stress-resistant interlock made from steel pipes

    with lattice pattern projections

    Steel Pipe Sheet Pile FoundationFoundations can be used both for temporary cofferdams and for permanent foundations

  • A sat-in pile foundation involves a method in which the pillars of the buildings are driven directly into the foundation piles for which a special type of steel pipe pile with projections in the inner surface (inner ribs) is used, sothat the pillars and the foundation piles are connected.

    26 STEEL PIPE PILES STEEL PIPE PILES 27

    Vertical load

    Bond stress

    Hoop stress

    Vertical load

    Bending moment

    Bending moment

    Horizontal load

    Horizontal load

    Concrete

    Steel Pipe Pile with Inner Lib

    Column

    Steel pipe pile with inner rib

    Column

    Steel pipe pile

    Reinforcement

    Anchor bolts

    Column

    Footing

    This connecting method can eliminate the need to make a footing and reduces earth removal by utilizing a small number of large-diameter piles using rib pipes.

    A design method has been established in which the load transmitted from the upper pedestal is transmitted to the pile via projections inside the steel pipe. Certification has been obtained both in Japan and overseas.

    Conventional method

    This connection method

    Comparison to a conventional footing

    Construction period Reduction of around 30 to 40% (less concrete work)

    Construction cost

    DNV Technology Qualification

    Examples of applications

    ICHTHYS LNG PROJECT in AustraliaNIPPON STEEL & SUMITOMO METAL Nagoya Works

    NIPPON STEEL & SUMITOMO METAL Kamaishi Works

    Height of rib 2.5mm

    30mm L 40mm

    This connection methodConventional method

    Piling work

    Concrete work

    Piling work

    Soil work

    Soilwork

    Concrete work

    0

    25

    50

    75

    100

    Co

    st r

    atio

    bas

    ed o

    n a

    conv

    entio

    nal m

    etho

    d (%

    )

    Reduction of 20 to 30%

    Steel pipe pile with inner rib

    Steel pipe pile with inner rib

    Concrete

    Concrete

    Soil

    Soil

    Trial calculation by us.

    Sat-in Pile FoundationThe method that upper structures are directly connected to the foundations.

  • 28 STEEL PIPE PILES STEEL PIPE PILES 29

    Combined wall

    Combined wall

    Anchor

    Tie rod

    Our combined wall for large quay wall etc is able to realize the high quality and economical construction using light and strong steel pipe sheet piles and steel sheet piles

    Quay walls of port facilities and shipyard dock walls Earth-retaining walls for high embankments

    Vibratory hammer and hydraulic hammer are also available for installation.

    Steel pipe sheet piles

    ( 800 to 2,000)

    Sheet piles

    NS-SP-w (2pieces)

    NS-SP-w (2pieces)

    NS-SP-w (2pieces)

    NS-SP-10H (1piece)

    NS-SP-25H (1piece)

    NS-SP-45H (1piece)

    NS-SP-50H (1piece)

    Joint thickness is 9mm or 11mm. Please contact us for material quality of steel pipe sheet pile.

    Excellent cost-effectiveness

    High drivability

    High quality

    Function to support vertical loads

    2

    1

    3

    4

    Shapes

    Examples of application Installation method

    Features

    Combined walls come in combination of U-type/Hat-type sheet piles which have seven types and steel pipe sheet piles which have many types. Eventually they provide more than 74 types of economical properties. (Section modulus per meter of wall : over 20,000 cm3/m)

    Easy threading of large interlocks realizes quick and high-quality construction.

    Using Nippon steel & Sumitomo Metal's piles ensures high quality, high strength and high stiffness.

    Steel pipe sheet piles function both as supporting piles for vertical load and as retaining walls.

    Steel pipe sheet piles function both as supporting piles for vertical load and retaining walls.

    Combined Wall

  • 30 STEEL PIPE PILES STEEL PIPE PILES 31

    Set Flow.1 Set Flow.2 Set Flow.3 Set Flow.4

    Use a crane, etc., to hang and install an upper pile to the position of the lower pile that has been constructed beforehand.

    Align the gears of the upper pile to the gear gaps of the lower pile and insert the upper pile such that the upper and lower pile bodies come into contact.

    Turn the upper pile for the gear width (approximately 80 mm) and fit the gears.

    Install the stopper of the notched groove and use a set bolt to fix it.

    For the vertical joint of piles at construction sites, these joints can reduce the construction period at actual sites compared to that of weld joint, which is commonly used. In addition, products with stable quality are ensured by factory production. They can be constructed regardless of weather.

    SLP basic structure

    Primer

    Steel pipe

    Slip layer

    Protection layer

    Mechanical JointEnsure joint quality, reduces construction period and workloads, and makes all-weather construction possible.

    Special bitumen materials are applied to the surface of steel pipe piles to significantly reduce the negative friction that is transmitted to the steel pipe piles through the shearing deformation of slip layers.

    Weld inspection at the factory

    Weld inspection at the factory

    Gear section

    Notched groove

    Outer gear joint Upper pile

    Lower pileInner gear joint

    200

    Detail drawingof a protector

    12 mm or more

    Protector

    Slip layer

    application thickness: approximately 6 mm

    Steel pipe sheet pile Steel sheet pile Combined wall

    Diameter Thickness Interval of jointMoment of

    inertiaPipe

    weightJoint

    weight TypeNumber of sheet

    piles

    Width Moment of inertia Pile weight WidthMoment of

    inertiaSection modulus Unit mass

    D(mm) t(mm) bj(mm) (cm/pile) (kg/m/pile) kg/m/2piles bsp(mm) (cm/bsp) (kg/m/pile) (mm) (cm/m) (cm/m) (kg/m/m)800 9.0 965 174,940 176 69.4 NS-SP-10H 1 900 9,450 86 1,865 98,858 2,471 178 813 9.0 978 183,707 178 69.4 NS-SP-10H 1 900 9,450 86 1,878 102,841 2,530 178 864 10.0 1,029 244,621 211 69.4 NS-SP-10H 1 900 9,450 86 1,929 131,697 3,049 190 900 10.0 1,065 276,876 219 69.4 NS-SP-10H 1 900 9,450 86 1,965 145,698 3,238 191 914 11.0 1,079 318,112 245 69.4 NS-SP-10H 1 900 9,450 86 1,979 165,502 3,621 202 965 11.0 1,130 375,107 259 69.4 NS-SP-10H 1 900 9,450 86 2,030 189,418 3,926 204

    1,000 11.0 1,165 417,922 268 69.4 NS-SP-10H 1 900 9,450 86 2,065 206,940 4,139 205 1,016 12.0 1,181 476,985 297 69.4 NS-SP-10H 1 900 9,450 86 2,081 233,728 4,601 218 1,067 12.0 1,232 553,420 312 69.4 NS-SP-10H 1 900 9,450 86 2,132 263,985 4,948 219 1,100 13.0 1,265 655,774 348 69.4 NS-SP-10H 1 900 9,450 86 2,165 307,234 5,586 233 1,118 13.0 1,283 688,890 354 69.4 NS-SP-10H 1 900 9,450 86 2,183 319,870 5,722 234 1,168 13.0 1,333 786,691 370 69.4 NS-SP-10H 1 900 9,450 86 2,233 356,502 6,104 236 1,200 14.0 1,365 917,281 409 69.4 NS-SP-10H 1 900 9,450 86 2,265 409,117 6,819 250 1,219 14.0 1,384 962,072 416 69.4 NS-SP-10H 1 900 9,450 86 2,284 425,323 6,978 250 1,270 14.0 1,435 1,089,459 434 69.4 NS-SP-10H 1 900 9,450 86 2,335 470,584 7,411 252 1,300 15.0 1,465 1,250,028 475 69.4 NS-SP-10H 1 900 9,450 86 2,365 532,504 8,192 267 1,321 15.0 1,486 1,312,315 483 69.4 NS-SP-10H 1 900 9,450 86 2,386 553,920 8,386 268 1,372 16.0 1,537 1,566,821 535 69.4 NS-SP-10H 1 900 9,450 86 2,437 646,755 9,428 283 1,400 16.0 1,565 1,665,889 546 69.4 NS-SP-10H 1 900 9,450 86 2,465 679,596 9,709 285 1,422 16.0 1,587 1,746,594 555 69.4 NS-SP-10H 1 900 9,450 86 2,487 706,033 9,930 286 1,473 17.0 1,638 2,060,877 610 69.4 NS-SP-10H 1 900 9,450 86 2,538 815,668 11,075 302 1,500 17.0 1,665 2,177,656 622 69.4 NS-SP-10H 1 900 9,450 86 2,565 852,607 11,368 303 1,524 17.0 1,689 2,285,093 632 69.4 NS-SP-10H 1 900 9,450 86 2,589 886,198 11,630 304 1,575 18.0 1,740 2,668,433 691 69.4 NS-SP-10H 1 900 9,450 86 2,640 1,014,273 12,880 321 1,600 18.0 1,765 2,799,033 702 69.4 NS-SP-10H 1 900 9,450 86 2,665 1,053,761 13,172 322 1,626 18.0 1,791 2,939,307 714 69.4 NS-SP-10H 1 900 9,450 86 2,691 1,095,703 13,477 323 1,676 19.0 1,841 3,394,987 776 69.4 NS-SP-10H 1 900 9,450 86 2,741 1,241,951 14,820 340 1,700 19.0 1,865 3,544,640 788 69.4 NS-SP-10H 1 900 9,450 86 2,765 1,285,292 15,121 341 1,727 19.0 1,892 3,718,184 800 69.4 NS-SP-10H 1 900 9,450 86 2,792 1,335,017 15,461 342 1,778 20.0 1,943 4,267,787 867 69.4 NS-SP-10H 1 900 9,450 86 2,843 1,504,374 16,922 360 1,800 20.0 1,965 4,430,010 878 69.4 NS-SP-10H 1 900 9,450 86 2,865 1,549,442 17,216 361 1,829 21.0 1,994 4,874,533 936 69.4 NS-SP-10H 1 900 9,450 86 2,894 1,687,507 18,453 377 1,880 21.0 2,045 5,298,742 963 69.4 NS-SP-10H 1 900 9,450 86 2,945 1,802,320 19,174 380 1,900 21.0 2,065 5,471,593 973 69.4 NS-SP-10H 1 900 9,450 86 2,965 1,848,456 19,457 381 1,930 22.0 2,095 6,001,716 1,035 69.4 NS-SP-10H 1 900 9,450 86 2,995 2,006,933 20,797 398 1,981 22.0 2,146 6,495,920 1,063 69.4 NS-SP-10H 1 900 9,450 86 3,046 2,135,569 21,561 400 2,000 22.0 2,165 6,686,751 1,073 69.4 NS-SP-10H 1 900 9,450 86 3,065 2,184,589 21,846 401

    bj bsp

    t

    D

    b

    bj bsp

    t

    D

    b

    Steel pipe sheet pile Steel sheet pile Combined wall

    Diameter Thickness Interval of jointMoment of

    inertiaPipe

    weightJoint

    weight TypeNumber of sheet

    piles

    Width Moment of inertia Pile weight WidthMoment of

    inertiaSection modulus Unit mass

    D(mm) t(mm) bj(mm) (cm/pile) (kg/m/pile) kg/m/2piles bsp(mm) (cm/bsp)(kg/m/2piles) (mm) (cm/m) (cm/m) (kg/m/m)

    800 9.0 965 174,940 176 69.4 NS-SP-w 2 1,200 38,880 163 2,165 98,753 2,469 189 813 9.0 978 183,707 178 69.4 NS-SP-w 2 1,200 38,880 163 2,178 102,188 2,514 189 864 10.0 1,029 244,621 211 69.4 NS-SP-w 2 1,200 38,880 163 2,229 127,176 2,944 199 900 10.0 1,065 276,876 219 69.4 NS-SP-w 2 1,200 38,880 163 2,265 139,394 3,098 200 914 11.0 1,079 318,112 245 69.4 NS-SP-w 2 1,200 38,880 163 2,279 156,630 3,427 210 965 11.0 1,130 375,107 259 69.4 NS-SP-w 2 1,200 38,880 163 2,330 177,662 3,682 211

    1,000 11.0 1,165 417,922 268 69.4 NS-SP-w 2 1,200 38,880 163 2,365 193,135 3,863 212 1,016 12.0 1,181 476,985 297 69.4 NS-SP-w 2 1,200 38,880 163 2,381 216,641 4,265 222 1,067 12.0 1,232 553,420 312 69.4 NS-SP-w 2 1,200 38,880 163 2,432 243,524 4,565 224 1,100 13.0 1,265 655,774 348 69.4 NS-SP-w 2 1,200 38,880 163 2,465 281,784 5,123 236 1,118 13.0 1,283 688,890 354 69.4 NS-SP-w 2 1,200 38,880 163 2,483 293,078 5,243 236 1,168 13.0 1,333 786,691 370 69.4 NS-SP-w 2 1,200 38,880 163 2,533 325,900 5,580 238 1,200 14.0 1,365 917,281 409 69.4 NS-SP-w 2 1,200 38,880 163 2,565 372,743 6,212 250 1,219 14.0 1,384 962,072 416 69.4 NS-SP-w 2 1,200 38,880 163 2,584 387,335 6,355 251 1,270 14.0 1,435 1,089,459 434 69.4 NS-SP-w 2 1,200 38,880 163 2,635 428,180 6,743 253 1,300 15.0 1,465 1,250,028 475 69.4 NS-SP-w 2 1,200 38,880 163 2,665 483,606 7,440 266 1,321 15.0 1,486 1,312,315 483 69.4 NS-SP-w 2 1,200 38,880 163 2,686 503,013 7,616 266 1,372 16.0 1,537 1,566,821 535 69.4 NS-SP-w 2 1,200 38,880 163 2,737 586,622 8,551 280 1,400 16.0 1,565 1,665,889 546 69.4 NS-SP-w 2 1,200 38,880 163 2,765 616,509 8,807 282 1,422 16.0 1,587 1,746,594 555 69.4 NS-SP-w 2 1,200 38,880 163 2,787 640,598 9,010 283 1,473 17.0 1,638 2,060,877 610 69.4 NS-SP-w 2 1,200 38,880 163 2,838 739,820 10,045 297 1,500 17.0 1,665 2,177,656 622 69.4 NS-SP-w 2 1,200 38,880 163 2,865 773,606 10,315 298 1,524 17.0 1,689 2,285,093 632 69.4 NS-SP-w 2 1,200 38,880 163 2,889 804,365 10,556 299 1,575 18.0 1,740 2,668,433 691 69.4 NS-SP-w 2 1,200 38,880 163 2,940 920,792 11,693 314 1,600 18.0 1,765 2,799,033 702 69.4 NS-SP-w 2 1,200 38,880 163 2,965 957,073 11,963 315 1,626 18.0 1,791 2,939,307 714 69.4 NS-SP-w 2 1,200 38,880 163 2,991 995,650 12,247 316 1,676 19.0 1,841 3,394,987 776 69.4 NS-SP-w 2 1,200 38,880 163 3,041 1,129,116 13,474 332 1,700 19.0 1,865 3,544,640 788 69.4 NS-SP-w 2 1,200 38,880 163 3,065 1,169,098 13,754 333 1,727 19.0 1,892 3,718,184 800 69.4 NS-SP-w 2 1,200 38,880 163 3,092 1,215,013 14,071 334 1,778 20.0 1,943 4,267,787 867 69.4 NS-SP-w 2 1,200 38,880 163 3,143 1,370,154 15,412 350 1,800 20.0 1,965 4,430,010 878 69.4 NS-SP-w 2 1,200 38,880 163 3,165 1,411,882 15,688 351 1,829 21.0 1,994 4,874,533 936 69.4 NS-SP-w 2 1,200 38,880 163 3,194 1,538,230 16,820 366 1,880 21.0 2,045 5,298,742 963 69.4 NS-SP-w 2 1,200 38,880 163 3,245 1,644,774 17,498 368 1,900 21.0 2,065 5,471,593 973 69.4 NS-SP-w 2 1,200 38,880 163 3,265 1,687,637 17,765 369 1,930 22.0 2,095 6,001,716 1,035 69.4 NS-SP-w 2 1,200 38,880 163 3,295 1,833,150 18,996 385 1,981 22.0 2,146 6,495,920 1,063 69.4 NS-SP-w 2 1,200 38,880 163 3,346 1,952,902 19,716 387 2,000 22.0 2,165 6,686,751 1,073 69.4 NS-SP-w 2 1,200 38,880 163 3,365 1,998,583 19,986 388

    Steel pipe sheet pile NS-SP-w (2pieces)

    Steel pipe sheet pile NS-SP-10H (1piece)

    Please contact us for sectional properties after corrosion. In this case, length of steel pipe sheet pile and sheet pile are same.

    Sectional propertiesOther sizes are available upon request. Slip Layer Pipe Pile

    Ensure a reduction of negative friction in soft ground.

  • 32 STEEL PIPE PILES STEEL PIPE PILES 33

    Designing the steel pipe pile considering corrosion allowanceA method in which thickness equal to the allowable quantity of the corrosion in steel materials during the service life of structures as a corrosion margin.

    Cladding concrete to prevent corrosionA method in which concrete or mortar is cladded around the surface of steel materials.

    The following methods are available to prevent the corrosion of steel pipe piles

    1

    2

    Coating the steel pipe piles to prevent corrosion Four types are available with regard to this method: by painting; using organic lining; using petrolatum lining; or using inorganic lining

    Examples of heavy anticorrosion steel pipe piles and steel pipe sheet piles

    Steel pipe piles and steel pipe sheet piles are covered with a urethane elastomer at the factory to provide for an anti-corrosive function that prevents harbor and marine structures from corroding. They have excellent anticorrosion properties and are

    products of stable quality produced at the factory. They can be constructed in the same way as steel

    materials without a coating, in principle.

    Electrolytic protection methodTwo types are available with regard to this method: by externally supplying a protection power source to prevent corrosion (external power method) or by attaching alloy such as aluminum and magnesium to the steel material as a sacricial anode (galvanic anode method).It is necessary to select the most-optimum corrosion prevention method according to the design and site condition. For details, please contact us.

    Layer with special surface treatment

    Urethane elastomeranticorrosive layer

    Steel materials

    Atmosphere above the sea

    Splash zone

    Dep

    th Tidal zone

    In seawater

    In seabed

    Seabed surface

    LWL (mean low-water spring)

    HWL (mean high-water spring) MSL (average sea level)

    MLWL (mean low water level)

    H.W.L.

    L.W.L.

    M.L.W.L.

    (A) (B) (C)

    L.W.L. -1m

    G.L.

    Atmosphere above the sea

    Coatingand/or

    Cladding

    Coatingor

    Cladding

    Electrolytic protection

    Electrolytic protection Corrosion

    allowance

    Splash zone

    Tidal zone

    In seawater

    In seabed

    Coatingand/or

    Cladding

    3

    4

    Example of the corrosion classification of port structures and the applied corrosion protection method

    Corrosion condition at the sea area

    Anticorrosion System

  • 34 STEEL PIPE PILES STEEL PIPE PILES 35

    Production Process

    Spiral Steel Pipe

    Bending Roll Steel Pipe

    Electric Resistance-Welded Steel Pipe

    UO Steel Pipe

    Nondestructive Inspection

    Nondestructive Inspection

    Medium Diameter Pipe

    Hot-Rolled Coil with Rib

    Coal Coking Plant Blast Furnace

    Torpedo Car

    Chargingscrap

    OxygenBlow

    ChargingMolten Iron

    ContinuousCasting

    BasicOxygenFurnace

    VacuumDegassingEquipment

    Finishing MillContinuousReheatingFurnace

    RoughingMill

    Hot-Rolled Coil

    Hot-Rolled Coil with Rib

    Reheating Furnace Roughing Mill Finishing Mill Controlled Cooling Plate

    Limestone

    Sintering PlantIron Ore

    UO Steel PipeBending Roll Steel Pipe

    Spiral Steel Pipe Electric Resistance-Welded Steel Pipe

    It is one example of a typical manufacturing process.

    Coating

    Junction Processing Product

    Product

    Product

    Inspection

    InspectionSteel Plate Edge Planing Tack Welding Internal Welding External Welding ExpansionEdge Bending U-ing Press O-ing Press

    Tack Welding Internal WeldingSteel Plate Groove Preparation Edge Bending Roll Bending

    Press Forming

    External Welding End Facing

    End Facing

    Forming Outside FlashRemoval

    Cooling Sizing Straightening Cutting and Facing

    Final InspectionFlying Cut-offWelding

    Preparation Manufacturing of Pipe Conditioning / Inspection

    End Facing Inspection

    End Facing Inspection

    Butt Welding

    Side TrimmerBeveling

    TravelingAutomatic

    Cutting

    Internal andExternalWelding

    Butt Welding

    Side TrimmerBeveling

    TravelingAutomatic

    Cutting

    Internal andExternalWelding

  • 36 STEEL PIPE PILES STEEL PIPE PILES 37

    Spiral Welded Steel PipeAvailable Specification 1, 2 Yield Stress 235MPa

    Production Range

    400

    500

    600

    700

    800

    900

    1,000

    1,100

    1,200

    1,300

    1,400

    1,500

    1,600

    1,700

    1,800

    1,900

    2,000

    2,100

    2,200

    2,300

    2,400

    2,500

    2,600

    2,700

    2,800

    2,900

    3,000

    6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

    400

    500

    600

    700

    800

    900

    1,000

    1,100

    1,200

    1,300

    1,400

    1,500

    1,600

    1,700

    1,800

    1,900

    2,000

    2,100

    2,200

    2,300

    2,400

    2,500

    2,600

    2,700

    2,800

    2,900

    3,000

    Diameter

    (mm)

    Diameter

    (mm)

    Thickness (mm)

    : Please contact us detail in advance to order.

    For other yield stresses, please contact us detail in advance to order.

    JIS G 3106

    Grade

    Chemical Component (%) Mechanical Properties

    C Si Mn P S Cr Ni Cu Mo Al Ti N Ceq MinimumTensile

    Strength(Mpa)

    Minimum Yield Stress (Mpa)

    Minimum Elongation (%)(Gauge Length 50mm)

    Minimum Impact Energy (J)

    Thickness (mm) Thickness (mm)0 C 20 C

    max max max max max max max max max max max max max 16 1640516

    1650

    SM 490YA 0.20 0.55 1.65 0.035 0.035 4904 365 355 15 19

    SM 490YB 0.20 0.55 1.65 0.035 0.035 4904 365 355 15 19 27

    JIS A5525 & A5530

    Grade

    Chemical Component (%) Mechanical Properties

    C Si Mn P S Cr Ni Cu Mo Al Ti N Ceq Minimum Tensile Strength

    (Mpa)

    Minimum Yield Stress (Mpa)

    Minimum Elongation (%)(Gauge Length 50mm)

    max max max max max max max max max max max max max

    SKK400SKY400 0.25 0.040 0.040 400 235

    3 18

    SKK490SKY490 0.18 0.55 1.65 0.035 0.035 490 315

    3 18

    ASTM A252

    Grade

    Chemical Component (%) Mechanical Properties

    C Si Mn P S Cr Ni Cu Mo Al Ti N Ceq Minimum Tensile Strength

    (Mpa)

    Minimum Yield Stress (Mpa)

    Minimum Elongation (%)(Gauge Length 50.8mm)

    max max max max max max max max max max max max max

    Grade 1 0.050 345 205 30

    Grade 2 0.050 415 240 25

    Grade 3 0.050 455 310 20

    AS/NZS 3678

    Grade

    Chemical Component (%) Mechanical Properties

    C Si Mn P S Cr Ni Cu Mo Al Ti N Ceq5 Minimum

    TensileStrength

    (Mpa)

    Minimum Yield Stress (Mpa)

    Minimum Elongation (%)(Gauge Length 5.65S0mm)Thickness (mm)

    max max max max max max max max max max max max max 8 8121220

    2032

    250 0.22 0.55 1.70 0.040 0.030 0.25 0.50 0.40 0.10 0.100 0.040 0.44 410 280 260 250 250 22

    300 0.22 0.55 1.70 0.040 0.030 0.25 0.50 0.40 0.10 0.100 0.040 0.44 430 320 310 300 280 21

    350 0.22 0.55 1.70 0.040 0.030 0.25 0.50 0.40 0.35 0.100 0.040 0.48 450 360 360 350 340 20

    Cr + Ni + Cu + Mo = 1.00% maximum apply. Limits specified are for both acid soluble and total aluminium. Niobium plus vanadium: 0.030% maximum. Vanadium: 0.10% maximum. Niobium plus vanadium plus titanium: 0.15% maximum.

    EN 10025-2 & 10219-1

    Grade

    Chemical Component (%) Mechanical Properties

    C Si Mn P S Cr Ni Cu Mo Al Ti N Ceq5 Minimum

    TensileStrength

    (Mpa)

    Minimum Yield Stress (Mpa) Minimum Elongation

    (%)(Gauge Length 5.65S0mm)

    Minimum Impact Energy (J)

    Thickness (mm)0 C 20 C

    max max max max max max max max max max max max max 16 1640S235JR 0.17 1.40 0.035 0.035 0.55 0.012 0.35 3604 235 225 26 27

    S275JR 0.21 1.50 0.035 0.035 0.55 0.012 0.40 4104 275 265 23 27

    S355JR 0.24 0.55 1.60 0.035 0.035 0.55 0.012 0.45 4704 355 345 22 27

    S235JRH 0.17 1.40 0.040 0.040 0.009 0.35 3604 235 225 24 27

    S275JOH 0.20 1.50 0.035 0.035 0.009 0.40 4104 275 265 20 27

    S355JOH 0.22 0.55 1.60 0.035 0.035 0.009 0.45 4704 355 345 20 27

    1 All requirements not stipulated herein are subject to discussions.2 Don't hesitate to ask if a standard is not listed or mentioned.3 You can modify Minimum yield stress of JIS with discussions.4 No cap (or limitation) on the maximum TS values. 5 Ceq = C + Mn/6 +(Cr+Mo+V)/5+(Ni+Cu)/15

  • 38 STEEL PIPE PILES STEEL PIPE PILES 39

    Accessories Junction Types for Steel Pipe Sheet Piles

    Support band

    Bottom of pipe

    L1

    T

    a

    l1

    a

    T

    Diameter

    D

    Band length

    L1

    Thickness

    T

    D 609.6

    609.6 D

    200

    300

    9

    9

    Unit: mm

    Unit: mmUnit: mm

    Unit: mm

    a

    A

    A2

    A2

    E

    D

    C

    B

    120 100 55 25 25 12 40 6

    120 100 55 25 25 16 40 9

    200 150 90 30 30 22 65 15

    Maximum lifting load(ton)

    WidthA

    HeightB

    LocationC

    ThicknessT

    Diameter a

    Leg length

    Chamfer dimension

    D E

    W 3

    3 W 5

    5 W 10

    Unit: mm

    Pipe diameter D (mm) Number N

    D 609.6

    609.6 D 1,016

    1,016 D

    4

    6

    8

    Pipe diameter D (mm) T H

    D 1,016

    1,016 D

    4.5

    6.0

    50

    70, 50

    15 (H=50)

    35 (H=70)

    h

    Attachmentposition

    I1

    Leg length

    a

    18

    18

    6

    6

    Diameter

    D

    Band thickness

    T

    Band width

    B

    D 800

    800 D 1200

    1200 D 1500

    9

    12

    16

    25

    25

    32

    Number of stopperThickness and height of backing ring

    Attachmentin factory Hammered ash

    Upper pile

    Lower pile

    Backing ring

    Number of stopper

    Attachment in factory

    (Copper band)

    Bead

    NotchThickness 2.3

    40T

    h

    2035

    h

    H

    H

    D

    6 t

    T

    2530

    35

    02.4

    14

    80-N

    45

    Reinforcing Band

    Lifting Lug

    Backing Ring for Weld

    Backing ring

    d4.550

    Stoppers at N spots

    630

    For strengthening pile on the top or bottom

    For easy handling of pile transport

    Simple weld joint to elongate pile

    Band

    Outer band d=D+2T

    Inner band d=D2t

    D : pipe diameter

    t : pipe thickness

    d

    B

    T

    3510

    180

    76

    9

    9

    305

    D

    D

    T shape steel 768599

    165.29

    85

    T 10.9kg/mP 34.7kg/m{

    8

    247.

    8

    165.2t

    165.2t

    305

    305

    Junction Gap 247.8mm

    Unit weight 83.6kg/m (t=11)Unit weight 69.4kg/m (t=9)

    Junction Gap 180.0mm

    Unit weight 45.6kg/m

    T 12.7kg/mL 19.9kg/m{

    Junction Gap

    Unit weight 32.6kg/m

    D

    8

    D

    8

    t

    9

    11

    5804'30"

    5736'39"

    12

    J65

    309

    125

    30

    D

    D

    65

    160

    Angle steel 65658

    T shape steel 1259

    Both ends 100mm

    65

    9

    8

    8

    D2

    D

    2 76 2 802 D( )

    D

    D

    12

    J75

    309

    125

    30 75

    180

    Angle steel 75759

    T shape steel 1259

    Both ends 100mm

    75

    9

    8

    8

    J75D2

    D

    2 85.5 2 902 D( )

    T 12.7kg/mL 15.3kg/m{

    Junction Gap

    Unit weight 28.0kg/m

    J65

    Steel pipeSteel pipe

    Steel pipe

    P-P Type (Pipe Type) P-T Type (Pipe T Type)

    L-T Type (Type 65) L-T Type (Type 75)

    6

    The ribbed pilesThe ribbed piles have spiral shape ribs. The ribs work efficiently for improving the bond strength between the pipe and concrete or the pipe and soil cements, so it can used for steel-concrete composite piles or as the core of soil cements.

    There are two types of ribbed piles, pipe with inner ribs and pipe with outer ribs.The mechanical properties and chemical composition of the ribbed piles are based on JIS A5525.

    Rib specifications

    Item Tolerances

    Rib height (h) 2.5mm or more

    Rib width (B) 4.0mm B 20mm

    Rib pitch (L)

    30mm L 40mmThe rib pitch around a welded (L') seam shall be not more than 230mm.

    Angle of rib () 40 degrees or less

    Rib

    Section ASection A

    Rib pitch (L)

    The rib pitch around a welded seam (L)

    Rib width (B)

    Weldedseam

    Angle of rib ()

    Rib height (h)

  • 40 STEEL PIPE PILES STEEL PIPE PILES 41

    Sectional Properties

    Steel Pipe Sheet PilesSteel Pipe Piles

    Diameter

    mm

    Thickness

    mm

    Corrosion allowance (0mm) Corrosion allowance (1mm) Per 1m of pile wall width (L T type) L65 65 8 Per 1m of pile wall width (L T type) L75 75 9 Per 1m of pile wall width (P T type) Per 1m of pile wall width (P P type) t = 9mm Per 1m of pile wall width (P P type) t = 11mm

    Sectionalarea

    cm2

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Radius ofgyration

    cm

    Sectionalarea

    cm2

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ65mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ75mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    400

    6789

    1011121314151617

    74.386.498.5

    110.6122.5134.4146.3158.1169.8181.4193.0204.5

    58.367.877.386.896.2

    106115124133142152161

    144102167102189102211102233102254102276102296102317102337102356102376102

    72.11083.51094.710106101171012710138101481015810168101781018810

    13.913.913.913.813.813.813.713.713.713.613.613.6

    61.773.986.098.0

    110.0121.9133.7145.5157.2168.9180.5192.0

    119102142102164102186102208102230102251102271102292102312102331102351102

    59.91071.31082.61093.7101051011510126101361014710157101671017610

    500

    6789

    10111213141516171819

    93.1108.4123.7138.8153.9169.0184.0198.9213.8228.6243.3258.0272.6287.1

    73.185.197.1

    109121133144156168179191203214225

    284102329102374102418102462102505102548102590102632102673102713102753102793102832102

    1141013210150101671018510202102191023610253102691028510301103171033310

    17.517.417.417.417.317.317.317.217.217.217.117.117.117.0

    77.492.7

    108.0123.2138.3153.3168.3183.2198.1212.9227.6242.3256.9271.4

    235102281102325102370102413102457102499102541102583102624102664102704102744102783102

    94.5101131013110148 10166 10183 10200 10217 10234 10251 10267 10283 10299 10314 10

    62.9

    310.1336.9363.7390.3416.8443.2469.5495.7521.7547.7573.5

    243264285306327348369389410430450

    744102821102898102974102105103112103120103127103134103141103148103

    2971032810359103891041910449104781050710535105631059110

    68.7

    317.2343.8370.2396.6422.8448.9474.9500.9526.6552.3577.9

    249270291311332352373393413434454

    736102813102889102964102104103111103118103125103132103139103146103

    2941032510355103851041510444104731050210530105571058510

    289.6311.8334.0356.0377.9399.8421.7443.4464.9486.4507.8

    227245262280297314331348365382399

    615102680102743102806102868102929102989102105103111103117103122103

    2461027210297103221034710372103961042010443104661048910

    303.9324.1344.2364.2384.2404.1423.7443.4463.1482.6502.0

    239254270286302317333348364379394

    559102618102675102733102789102845102900102954102101103106103111103

    2231024710270102931031610338103601038110403104241044510

    328.1348.3368.4388.4408.4428.3448.0467.8487.4506.9526.4

    258273289305321336352367383398413

    600

    6789

    1011121314151617181920

    112.0130.4148.8167.1185.4203.5221.7239.7257.7275.7293.6311.4329.1346.8364.4

    87.9102117131145160174188202216230244258272286

    494102573102652102730102807102883102958102103102111102118102125102132102139102146102153102

    165 10191 10217 10243 10269 10294 10319 10344 10369 10393 10417 10441 10465 10488 10511 10

    21.021.020.920.920.920.820.820.820.720.720.720.620.620.620.5

    93.1111.6130.0148.3166.5184.7202.9220.9238.9256.9274.7292.5310.3328.0345.6

    409102489102568102645102722102799102874102949102102103110103117103124103131103138103145103

    137 10164 10190 10216 10242 10267 10292 10317 10342 10366 10391 10415 10438 10462 10485 10

    65.1

    304.9332.4359.7387.0414.1441.2468.2495.0521.8548.5575.1601.6

    239261282304325346367389410431451472

    110103121103133103144103155103166103177103188103199103210103220103231103

    366104041044310480105181055510591106281066410699107341076910

    71.7

    310.7337.8364.9391.9418.8445.6472.3498.9525.4551.9578.2604.4

    244265286308329350371392412433454474

    109103120103131103143103154103165103176103186103197103208103218103228103

    362104001043810476105131054910586106221065710692107271076110

    288.7312.1335.4358.7381.8404.9427.9450.8473.8496.6519.2541.8

    227245263282300318336354372390408425

    936102103103113103123103132103142103151103161103170103179103188103197103

    312103451037710410104411047310504105351056610596106261065610

    301.4322.9344.4365.7387.1408.3429.4450.5471.4492.4513.2534.0

    237253270287304320337354370387403419

    861102952102104103113103121103131103139103147103156103165103173103181103

    287103171034710376104061043510464104921052110548105761060310

    322.7344.2365.7387.1408.4429.6450.8471.9492.9513.8534.7555.5

    253270287304321337354370387403420436

    Moment of Inertia and Section Modulus are the same as (P P type) t = 9mm

    Junction type

    Sectional area of junction

    Junction type

    Sectional area of junction

    L 65 65 8 T 125 9

    35.71cm2

    L 75 75 9 T 125 9

    41.57cm2

    A D 2S2 D 2T24

    I D 2S4 D 2T464

    W 0.02466T D T

    Z cm332D 2S4 D 2T4

    D 2S

    Unit weight Per 1m of steel pipe sheet pile wall Junction types on the sectional properties list are the 3 types as shown below. Please see page 9 for more details on junction geometry.

    An increase in moment of inertia and section modulus by junction was disregarded because its inuence was assumed small.

    Moment of inertia

    Sectionmodulus

    Radius of gyration

    Formulas used in the sectional properties table for steel pipe piles and steel pipe sheet piles

    R D2 D 2T2 cm14

    kg/m

    cm2

    cm4

    Sectionalarea A A0 A

    D W0 W

    I I0 cm4/m

    Unit weight

    Momentof inertia

    Z Z0 cm3/m

    cm2/m

    kg/m2

    Sectionalarea

    100D B

    100D B

    100D B

    100D B

    1 L T TypeJunction type

    Sectional area of junction

    165.2 9 CT 76 85 9 9

    58.11cm2

    2 P T Type Pipe T Type

    Junction type

    Sectional area of junction

    165.2 11

    106.5cm2

    2 P P Type Pipe T Type

    D

    T

    S

    A 0

    W 0

    Diameter cm Thickness cm Corrosion allowance cm Sectional area per pipe proper cm2 Unit weight per pipe proper kg/m

    I 0

    Z 0

    B

    A

    W

    Moment of inertia per pipe proper cm4 Section modulus per pipe proper cm3 Junction gap cm Sectional area of a set of junctions cm2 Unit weight of per 1m of a set of junctions kg/m

    i

    ii

    Section modulus

  • 42 STEEL PIPE PILES STEEL PIPE PILES 43

    Steel Pipe Sheet PilesSteel Pipe Piles

    Diameter

    mm

    Thickness

    mm

    Corrosion allowance (0mm) Corrosion allowance (1mm) Per 1m of pile wall width (L T type) L65 65 8 Per 1m of pile wall width (L T type) L75 75 9 Per 1m of pile wall width (P T type) Per 1m of pile wall width (P P type) t = 9mm Per 1m of pile wall width (P P type) t = 11mm

    Sectionalarea

    cm2

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Radius ofgyration

    cm

    Sectionalarea

    cm2

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ65mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ75mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    700

    789

    10111213141516171819202122

    152.4173.9195.4216.8238.1259.4280.6301.7322.8343.8364.8385.7406.5427.3448.0468.6

    120137153170187204220237253270286303319335352368

    915102104103117103129103141103154103166103178103189103201103213103224103236103247103258103270103

    26110297103331036910404104391047310507105411057510608106411067410706107381077010

    24.524.524.424.424.424.324.324.324.224.224.224.124.124.124.024.0

    130.4152.0173.4194.8216.1237.4258.6279.8300.8321.9342.8363.7384.5405.3426.0446.6

    781102 907102103103116103128103140103152103164103176103188103199103211103222103234103245103256103

    22410260102961033110367104011043610470105041053810571106041063710670107021073410

    66.7

    301.4329.3357.1384.9412.5440.1467.6495.0522.3549.6576.7603.8630.8657.7

    237258280302324345367389410431453474495516

    152103168103184103200103216103232103247103262103278103293103308103322103337103352103

    43510481105271057210617106621070610750107931083610879109211096310100102

    73.7

    306.2333.9361.5388.9416.4443.7470.9498.1525.2552.2579.1605.9632.7659.4

    240262284305327348370391412433455476497518

    151103167103183103198103214103229103245103260103275103290103305103319103334103348103

    4311047610522105671061110656106991074310786108291087110913109541099510

    288.1312.4336.6360.8384.9408.9432.9456.7480.6504.4528.1551.7575.2598.6

    226245264283302321340359377396415433452470

    133103147103161103174103188103202103215103229103242103255103268103281103294103306103

    3791041910459104981053810576106151065310691107291076610802108391087510

    299.4322.0344.5366.9389.3411.6433.9456.0478.0500.1522.1544.0565.8587.6

    235253270288306323341358375393410427444461

    123103136103149103162103175103188103199103212103225103237103249103261103273103284103

    3511038910426104631049910535105711060710642106761071110745107791081310

    318.5341.1363.6386.0408.4430.7452.9475.1497.2519.3541.2563.2585.0606.8

    250268285303321338356373390408425442459476

    800

    89

    10111213141516171819202122232425

    199.1223.6248.2272.7297.1321.4345.7369.9394.1418.2442.2466.2490.1513.9537.7561.4585.1608.7

    156176195214233252271290309328347366385403422441459478

    156103175103194103212103231103249103267103285103303103321103338103356103373103390103407103424103441103457103

    3901043710484105311057710622106681071310757108021084610889109321097510102102106102110102114102

    28.028.027.927.927.927.827.827.827.727.727.727.627.627.627.527.527.427.4

    173.9198.5223.1247.6272.0296.3320.6344.8369.0393.1417.1441.1465.0488.8512.6536.3560.0583.6

    136103155103174103192103211103229103247103265103283103301103318103336103353103370103387103404103421103437103

    341103881043510482105281057410619106641070910753107971084110885109281097010101102105102110102

    67.9

    298.8327.1355.3383.4411.5439.5467.4495.2523.0550.7578.3605.8633.3660.7688.0715.3742.5

    235257279301323345367389411432454476497519540561583

    202103223103245103266103287103308103328103349103369103390103410103430103449103469103489103508103527103

    50410558106111066410717107691082110873109241097410102102107102112102117102122102127102132102

    75.2

    303.0331.1359.0386.9414.7442.5470.1497.8525.3552.7580.1607.4634.7661.9689.0716.0742.9

    238260282304326347369391412434455477498520541562583

    200103221103242103264103284103305103326103346103366103386103406103426103446103465103485103504103523103

    50010553106061065910711107631081410865109161096610102102107102111102116102121102126102131102

    287.5312.5337.5362.4387.3412.0436.8461.4486.1510.6535.1559.5583.8608.1632.3656.4680.5

    226245265285304324343362382401420439458477496515534

    179103198103217103235103254103273103291103309103327103345103363103381103398103415103433103450103467103

    44610494105411058810635106811072710773108181086310907109511099510104102108102112102117102

    297.8321.2344.6367.9391.1414.3437.4460.5483.4506.3529.2552.0574.8597.5620.1642.7665.2

    234252270289307325343361379397415433451469487505522

    167103185103202103220103238103255103272103289103306103323103339103356103372103389103405103421103437103

    4171046210507105511059410638106801072210765108071084910890109311097110101102105102109102

    315.1338.5361.9385.2408.4431.6454.7477.8500.7523.7546.6569.4592.1614.8637.5660.0682.6

    247266284302321339357375393411429447465483500518536

    900

    910111213141516171819202122232425

    251.9279.6307.2334.8362.3389.7417.0444.3471.6498.8525.9552.9579.9606.8633.7660.5687.2

    198219241263284306327349370392413434455476497519539

    250103277103304103330103356103382103408103434103460103485103510103536103560103585103610103634103658103

    5561061510675107331079210850109081096510102102108102113102119102125102130102135102141102146102

    31.531.531.431.431.431.331.331.331.231.231.231.131.131.131.031.030.9

    223.7251.4279.0306.5334.0361.4388.8416.1443.3470.5497.6524.7551.7578.6605.4632.2659.0

    221103248103275103302103328103354103380103406103431103457103482103507103532103557103581103605103630103

    493105531061310671107301078810846109031096010102102107102113102118102124102129102135102140102

    68.8

    325.5354.0382.4410.8439.1467.3495.5523.6551.7579.6607.6635.4663.2690.9718.6746.2

    255278300322345367389411433455477499521542564586

    286103313103341103368103395103422103448103475103501103527103553103578103604103629103654103679103

    63510696107571081710877109371099610105102111102117102123102129102134102140102145102151102

    76.4

    328.9357.2385.4413.6441.7469.7497.7525.6553.4581.2608.9636.5664.1691.6719.0746.4

    258280303325347369391413434456478500521543564586

    284103311103338103365103392103418103445103471103497103523103548103574103599103624103649103674103

    63010691107511081110870109301098810105102110102116102122102128102133102139102144102150102

    312.7338.3363.8389.2414.6440.0465.2490.5515.6540.7565.9590.8615.8640.6665.5690.2

    246266286306326345365385405425444464483503522542

    256103281103306103330103354103378103402103426103449103473103496103519103542103564103587103609103

    570106251067910733107871084010893109461099810105102110102115102120102125102130102135102

    320.6344.7368.7392.6416.5440.4464.2487.9511.6535.2558.7582.2605.6629.0652.4675.7

    252271289308327346364383402420439457475494512530

    241103265103288103310103333103355103378103401103423103444103467103488103510103531103552103573103

    53610588106391069010741107911084110889109411098410104102108102113102118102123102127102

    336.4360.4384.4408.4432.3456.1479.9503.6527.3550.9574.5598.0621.5644.9668.2691.5

    264283302321339358377395414432451469488506525543

    1000

    10111213141516171819202122232425

    311.0341.8372.5403.1433.7464.2494.6525.0555.3585.6615.8645.9675.9705.9735.9765.8

    244268292316340364388412436460483507531554578601

    381103418103455103491103527103563103599103634103670103705103740103774103809103843103877103911103

    76210836109091098210105102113102120102127102134102141102148102155102162102169102175102182102

    35.035.034.934.934.934.834.834.834.734.734.734.634.634.634.534.5

    279.6310.4341.1371.7402.3432.8463.2493.6523.9554.2584.4614.5644.6674.6704.5734.4

    342103379103415103452103488103524103560103595103630103666103700103735103769103804103838103871103

    6851075910832109051097810105102112102119102126102133102140102147102154102161102168102175102

    69.6

    352.9381.6410.3438.9467.4495.8524.2552.6580.9609.1637.3665.4693.4721.4749.4

    277300322344367389411434456479500522544566588

    391103425103459103493103526103560103593103626103659103691103724103756103788103820103851103

    78110850109181098610105102112102119102125102132102138102145102151102158102164102170102

    77.3

    355.8384.3412.7441.1469.4497.7525.9554.0582.1610.1638.1666.0693.9721.6749.4

    279302324346368391413435457479501523545566588

    388103422103456103489103523103556103589103622103654103686103719103751103782103814103845103

    77610844109111097910105102111102118102124102131102137102144102150102156102163102169102

    338.9364.9390.9416.8442.6468.4494.2519.8545.5571.0596.7622.2647.6673.0698.3

    266286307327348368388408428448468488508528548

    354103385103416103447103477103507103538103567103597103627103656103685103714103743103772103

    7081077010832108931095410101102108102113102119102125102131102137102143102149102154102

    344.8369.4393.9418.4442.8467.2491.6515.9540.1564.3588.4612.5636.5660.5684.5

    271290309328348367386405424443462481500519537

    335103365103393103422103451103480103508103537103565103593103620103648103675103703103730103

    670107281078710841109061096210102102107102113102119102124102130102135102141102146102

    359.2383.8408.4432.9457.3481.7506.1530.4554.6578.8603.0627.1651.1675.1699.0

    282301321340359378397416435454473492511530549

    Moment of Inertia and Section Modulus are the same as (P P type) t = 9mm

    Sectional Properties

  • 44 STEEL PIPE PILES STEEL PIPE PILES 45

    Steel Pipe Sheet PilesSteel Pipe Piles

    Diameter

    mm

    Thickness

    mm

    Corrosion allowance (0mm) Corrosion allowance (1mm) Per 1m of pile wall width (L T type) L65 65 8 Per 1m of pile wall width (L T type) L75 75 9 Per 1m of pile wall width (P T type) Per 1m of pile wall width (P P type) t = 9mm Per 1m of pile wall width (P P type) t = 11mm

    Sectionalarea

    cm2

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Radius ofgyration

    cm

    Sectionalarea

    cm2

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ65mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    JunctiongapJ75mm

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    Moment ofinertia

    cm4

    Sectionmodulus

    cm3

    Sectionalarea

    cm2/m

    Unitweight

    kg/m

    1100

    111213141516171819202122232425

    376.3410.2443.9477.6511.3544.9578.4611.9645.3678.6711.9745.1778.2811.3844.3

    295322348375401428454480506533559585611637663

    558103607103656103704103753103800103848103896103943103990103104104108104113104117104122104

    101102110102119102128102137102146102154102163102171102180102188102197102205102214102222102

    38.538.538.438.438.438.338.338.338.238.238.238.138.138.138.0

    341.8375.6409.4443.1476.8510.4543.9577.3610.7644.1677.3710.5743.7776.8809.8

    506103555103604103652103700103748103796103844103891103938103984103103104108104112104117104

    92110101102110102119102128102136102145102154102162102171102179102188102196102204102213102

    70.2

    381.0409.9438.7467.5496.2524.8553.4581.9610.4638.9667.2695.6723.8752.1

    299322344367389412434457479502524546568590

    519103560103602103643103684103725103765103806103846103886103925103965103100104104104

    94310102102109102117102124102132102139102146102154102161102168102175102183102190102

    78.1

    383.4412.1440.7469.3497.8526.3554.7583.0611.3639.5667.7695.9723.9752.0

    301323346368391413435458480502524546568590

    515103557103598103639103679103720103760103800103840103880103919103958103997103104104

    93710101102109102116102124102131102138102146102153102160102167102174102181102188102

    365.9392.2418.5444.8471.0497.2523.4549.5575.5601.6627.5653.4679.3705.1

    287308329349370390411431452472493513533553

    474103512103550103588103625103663103700103737103773103810103846103882103918103953103

    86210932101001021071021141021201021271