DRIVEN PILE SPECIFICATIONS
-
Upload
boris-bush -
Category
Documents
-
view
75 -
download
13
description
Transcript of DRIVEN PILE SPECIFICATIONS
![Page 1: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/1.jpg)
DRIVEN PILE SPECIFICATIONS
Chapter 11
![Page 2: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/2.jpg)
Generic Specification (11-6)
Owner responsible to “estimate” pile lengths
Contractor responsible to provide and install undamaged piles.
Must satisfy minimum required depth of embedment
Must drive to required ultimate capacity, w/ reasonable BC
![Page 3: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/3.jpg)
Approved Hammers (11-9)
OED Measure Stroke (11-10)
CED Bounce Chamber Pressure (11-10)
![Page 4: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/4.jpg)
Proximity Switches
Transmitter
Battery
![Page 5: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/5.jpg)
Approval of Pile Driving Equipment (11-11)
Wave Equation Equipment Form (11-14)
Reasonable Blow Count 30-120 bpf (11-15)
Driving Stresses (11-15, chap 10)
Concrete (f’c, fpe)
Steel (fy)
![Page 6: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/6.jpg)
Grade 50 ksi
![Page 7: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/7.jpg)
ASD Factors of Safety (11-16)
Ultimate Pile Capacity (11-17)Must be shown on Plans: ASDOr LRFD
Optimum Pile Installation – Maximum Curvature (11–17)
![Page 8: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/8.jpg)
Drive System Components (11-19)
Hammer Cushion (11-19)
Pile Cushion w/ concrete piles (11-20)
New Pile Cushion for each Pile
Used Pile Cushion for Re-Strikes
Leads (11-21)
![Page 9: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/9.jpg)
Hammer Cushions
• Are materials placed between the pile hammer ram and the helmet
• It’s function ?
To relieve impact shock and To relieve impact shock and thereby protect the hammer while thereby protect the hammer while at the same time transmit at the same time transmit consistent energy to the pileconsistent energy to the pile
![Page 10: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/10.jpg)
Hammer Cushions
Recommended:
Not Recommended:
Man-made cushion materials made of micarta, nylon, urethane, or other polymers
HardwoodPlywoodWire ropeAsbestos
![Page 11: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/11.jpg)
NIM
![Page 12: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/12.jpg)
NIM
![Page 13: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/13.jpg)
NIM
![Page 14: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/14.jpg)
Pile Cushion
• Concrete piles require a pile cushion
between the helmet and the pile lead
• Typically made of plywood, hardwood,
plywood & hardwood composites, or
other man-made materials
![Page 15: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/15.jpg)
![Page 16: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/16.jpg)
NIM
![Page 17: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/17.jpg)
NIM
![Page 18: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/18.jpg)
Followers(11-21) Only with Engineer’s Approval
Jets (11-22) Only with Engineers Approval
Pre-Boring (11-22) Only with Engineers Approval
![Page 19: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/19.jpg)
Follower
• Is a member interposed between a pile hammer and a pile to transmit blows when the pile head is below the reach of the hammer
• Use of a follower is accompanied by a loss of energy delivered to the pile due to compression of the follower & losses in connection
![Page 20: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/20.jpg)
NIM
![Page 21: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/21.jpg)
![Page 22: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/22.jpg)
Jetting
• The use of a water or air jet to facilitate pile driving by displacing parts of the soil
• Jetting is useful in driving piles through very dense material
![Page 23: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/23.jpg)
![Page 24: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/24.jpg)
NIM
![Page 25: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/25.jpg)
Spudding
• The act of opening a hole through dense material by driving or dropping a short & strong member & then removing it
• Used as an alternate to jetting or predrilling in upper soil consisting of miscellaneous fill
![Page 26: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/26.jpg)
NIM
![Page 27: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/27.jpg)
Gates Formula – limited (11-23)
Phase in WEAP (11-25)
Static Load Tests (11-26 & 27)
Include Dynamic Testing (11-28)
Contractor Responsibilities (11-29)
Restrike (11-30)
Duration
Cold Hammer
![Page 28: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/28.jpg)
Tolerances (11-35)
Pile Heave (11-35)
Installation Sequence (11-36)
Unsatisfactory Piles (11-36)
Pay Items (11-40)
![Page 29: DRIVEN PILE SPECIFICATIONS](https://reader033.fdocuments.net/reader033/viewer/2022061607/56813634550346895d9dafa7/html5/thumbnails/29.jpg)
ANY QUESTIONS ?