Our Services and Solutions - GLOSTREXT

-8 Glostrext 2020 Rev. 1.0

Glostrext Instrumentation Method : A novel technology empowering You to make decisions based on Facts

Welcome to Glostrext Technology Group of Companies

Our Services and Solutions:

GroupofCompanies.since1992.

GlostrextTechnology

Pile Load Test and Glostrext

Instrumentation

Wireless Sensors and Online

Structural Health Monitoring

Automation and IoT Solutions

Accredited Calibration

Services

Glostrext Technology HQ @ Subang 2, Damansara West

We offer trusted measurements, large quantity wireless-sensors-based reliable automated data, specialist testing, monitoring works and creative automation solutions in various engineering industries.

Geotechnical Instrumentation and Engineering

Survey

To obtain the hallmark for trusted specialist builders, technical excellence, innovative services and creative solutions.

Vision

To provide innovative technologies and trusted data empowering our clients to make decision based on facts.

Objective

Trustworthiness on data provided Respect team work spirit Fairness via facts based decisions Caring via structured sharing & training

Core Values

Glostrext Technology (S) Pte Ltd (200905332R)

30 Kaki Bukit Road 3, #01-02 & #06-09 Empire Techno Centre, Singapore 417819.

Glostrext Technology Sdn. Bhd. (649873-V)

Spectest Sdn. Bhd. (236932-K)

No. 11A, Jalan Apollo U5/194, Seksyen U5, Bandar Pinggiran Subang, 40150 Shah Alam, Selangor, Malaysia.

+603-7832 2012 +603-7832 3646

[email protected], [email protected]

+65-6846 9808, +65-8299 5577

+65-6846 9800

[email protected]

Bi-Directional Static Load Testing

(BDSLT)



Pile Load Test and Glostrext Instrumentation


GlostrextTechnology

We provide a complete range of high-quality pile tests instrumentation services since 1992. Over the years, the Group has emerged as the trusted specialist builder in planning, supervision and conducting field instrumentation, wireless sensors and remote online data monitoring systems, automatic pile test monitoring, analysis and reporting works for pile load tests, with emphasis on Glostrext Instrumentation Techniques for driven and jacked-in spun piles, R.C. piles, steel pipe piles, cast-in-place bored piles, barrettes and micropiles in Malaysia, Singapore and Asia region. Our innovative Glostrext Instrumentation Method, where each and every sensor can be individually calibrated for reliable instrumentation scheme, has been widely accepted and used in more than six hundred (600) projects for the instrumented static load tests on driven, jacked-in and bored cast-in-place piles worldwide for the past 10 years.

Reaction anchors system with ‘monster block’, 1993

Kentledge blocks reaction system, 1997

Rebar for whole building as reaction system, 1995

Tension micropile test, 1996

H-piles as reaction system, 1994

Kentledge vs reaction anchors system side by side, 1999

Record breaking 8,000t MLT (by Sunway) at KLCC Pkg 2,2013

Jimah tension test, 2005

ICT at Marina South, 2010

Penang 2X Glostrext system for spun pile, 2007

Reaction piles system, KLCC Convention Centre, 2002

5000t Kentledge MLT, Platinum Park, 2010

Scale R2 Scale T2 Vibrating Wire Load Cell 1 & 2 Scale T1 Scale R1

LVDT S2 1000 TONS ENERPAC JACK LVDT S4 LVDT S1

* at the back of jack

LVDT S3

On Site Automatic data logging system VW Extensometer housed in 51mm i.d. steel pipes

Extensometer pressure manifold maintains the anchors pressure during monitoring period.

VW Strain Gauges installed to main reinforcement bar.

Bottom anchor for VW Extensometer Extensometer assembly with VW sensor

Typical pile instrumentation & monitoring Setup (conventional & Glostrext)

Jacked-in spun pile with Glostrext, Terengganu, 2008

TSP test, Bunker Island JB, 2008


Bi-Directional Static Load Testing (BDSLT)

GroupofCompanies.since1992. Glostrext Instrumentation Method : A novel technology empowering You to make decisions based on Facts

GlostrextTechnology

We provide high-quality BDSLT services for carrying out static load tests on bored piles as an alternative option to using kentledge blocks setup or reaction pile system for the piling industry needs, including incorporate our innovative Glostrext Instrumentation Method in BDSLT. Bi-Directional Static Load Testing was conducted by applying hydraulic pressure to the pre-installed hydraulic jacks in piles using an air-driven hydraulic pump, creating an upward force to test resistance of pile upper element (upper shaft friction) and an equal, but downward force to test resistance of pile lower element (combined lower shaft friction and end bearing).

Bi-directional hydraulic jacks & bearing plates assembly (3.1), lowering of steel cage (3.2) & test & monitoring setup at site (3.3)

Figure A:Instrumentation levels for Test Pile BP16 (2200mm Ø) near BH BP16Pile length = 39.38 m from Existing GL of RL +39.55 m and 32.055 m from cut-off level of RL +32.225

EGL RL +39.55 m

Instruments Level No.

VWSG A 4

B 4

C 4

D 4

E 4

F 4

Total= 24

Sonic Logging Pipe 6

TT1 2

TT2 2

TT3 2

TT4 2

Total= 8

Pile toe at 39.38 m depth

LEGEND:Vibrating Wire Strain Gauge(VWSG, 4 no. Geokon VSM-4000 at each level)

Tell-tale Extensometer(TT, 2 no. at each level)

denotes Glostrext anchored level (2 sets per level)

denotes VW Glostrext Sensors (2 sets per level)SI Borehole : BH-BP16

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Dep

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SPT value, N (blows/30cm)

0.0m

BD Jacks27.88 m TT2

TT3

Hydraulic hoses

TT4

VWSG Lev F38.7 m

VWSG Lev D29.2 m

VWSG Lev C26.2 m

VWSG Lev B19.2 m

VWSG Lev A9.45 m

COL RL +32.225 m

Shale, RQD = 13%

Shale, RQD = 0%

Shale, RQD = 0%

Shale, RQD = 0%

Shale, RQD = 0%

TT1 7.325 7.325m

GSG A1, A2 9.45m

6.20m depth, Anchored Lev. A-0

12.7m Anchored Lev. A-1

GSG B1, B2 19.2m

25.7m Anchored Lev. A-2GSG C1, C2 26.2m26.7m Anchored Lev. A-3

28.7m Anchored Lev. A-4GSG D1, D2 29.2m

29.7m Anchored Lev. A-5

GSG E1, E2 33.95m

38.2m Anchored Lev. A-6GSG F1, F2 38.7m39.2m Anchored Lev. A-7

class B, 2.5" GI/steel pipe with 67mm to 70mm i.d. fully accessible for housing VW extensometer and sensors

VWSG Lev E33.95 m

Shale, RQD = 0%

Shale, RQD = 0%

Shale, RQD = 0%

Shale, RQD = 0%

Key advantages of the BDSLT method include: (i) Significant advantage in Safety and Space implications. Kentledge setup involve work at height, heavy lifting work, working during night and high risk activities. For BDSLT, it’s low “footprint” and “low headroom” requirement for testing. BDSLT installation activities is already part of the steel cage fabrication and lowering of cage process, hence BDSLT is low risk, safe and flexible (over water, confined space, etc.); (ii) Considerable Time and Cost savings, especially for very high loading tests. Approximately 3 to 6 weeks needed for Kentledge tests including setup and unloading but BDSLT can be deployed in fast speed; (iii) Equivalent MLT top loaded settlement curve can be constructed from BDSLT results. (Ref: CP4:2003, Pg. 196-197, ASTM D8169-18 Bidirectional Test Guidelines and TR63-2018-SSC Technical Reference on Bi-Directional Static Axial Load Test).



Geotechnical Instrumentation and Engineering Survey


GlostrextTechnology

Spectest Sdn Bhd was formed in 1992, founded by our managing director, Ir. Dr. Lee Sieng Kai. Over the years, we have grown to provide a complete range of high-quality geotechnical instrumentation services with emphasize on large quantity wireless-sensors-based reliable automated data via online remote monitoring, suitable for monitoring of Deep Excavations & Foundation Piles, Hillside Development, Slope Engineering & Landslides, Building Settlements, Dams, Tunnels, Environmental, Vibration and Noise etc...

Trusted measurement data providers in Geotechnical Instrumentation since 1992: Throughout the years, the company has built up a solid track record and experiences on satisfactorily completion of more than 300 high quality geotechnical instrumentation and monitoring projects for both public and private sectors, from among major deep excavation monitoring works for Petronas Twin Towers (1993), Berjaya Times Square (2003), hillside development monitoring for Theme Park Hotel, Genting Highland (1993), Pumping Station Diaphragm Wall and Cold Water Intake Structure monitoring for Manjung Power Station (2000), deep excavation, structural and environmental effect of construction monitoring for Lot 171 Development, KLCC (2007, Lot 348 KL Sentral (2009)) to the latest web-based continuous monitoring displayed via online web visualization services for large quantity wireless-sensors-based reliable automated data like smart ground anchors monitoring at MET 5 (2020). The company has since emerged as the leading geotechnical instrumentation and monitoring specialists for planning, supervision and conducting field geotechnical instrumentation, with emphasize on large quantity wireless-sensors-based reliable continuous automated data via online remote monitoring in the region. Latest advancement in Internet of Things (IoT) solutions, wireless sensors and equipment, monitoring techniques and analysis software and many others instrumentation and monitoring tools has been successfully adopted and installed by Spectest Sdn Bhd since 1992, both during the construction phase or after the structures had been put into service. Our trusted services and technologies greatly assist the Engineers and Clients to optimize and improve their design and project performance, resulting in significant cost saving besides maintaining safe engineering practice. The latest instruments and techniques are adopted by the Company in the measurement works to ensure the best quality service to the Clients.



Wireless Sensors and Online Structural Health Monitoring System


GlostrextTechnology

Key advantages include: (i) It allows remote monitoring with minimal human

intervention once the system is installed and commissioned, hence minimize human error in readings;

(ii) It allows remote access of data, anywhere with internet access and anytime, be it in emergency, movement locked down time or just hard-to-access infrastructures;

(iii) Continuous large quantity reliable automated data gives complete picture of structure behavior for engineers to make informed decisions;

(iv) Cost saving through advancement of IoT technology and easy maintenance;

(v) Reduce risk and made operations safer; (vi) Enable structural health of buildings/infrastructures to

be checked by any party interested including public at large.

Note : Our international technologies partners include Worldsensing (Barcelona) and Geokon Incorporated (USA) and others

We provide a complete range of high-quality low cost online Structural Health Monitoring System via advanced wireless-sensors-based remote monitoring coupled with communication through the internet, or Internet of Things (IoT) solutions for both under construction and completed structures.

Building structural health monitoring system for Glostrext Technology HQ @ Subang 2, Damansara West


` Glostrext Instrumentation Method : A novel technology empowering You to make decisions based on Facts

Automation and IoT Solutions


GlostrextTechnology

Advanced wireless-sensors-based remote monitoring and data visualisation with IoT solutions

We provide practical Internet of Things (IoT) solutions for the engineering industries, using advanced sensor technology and automated data acquisition systems, data capturing and visualization software, to enable small, modest to mega projects to post monitoring data and analysis display to the web in an economic and cost effective manner. Our DataCentre web monitoring services utilizes professional data analysis software to store logged data, display and publish it to the Web.

Note : Our international technologies partners include Worldsensing (Barcelona), Geokon Incorporated (USA) and others

EL Beam Monitoring

MET 5 Ground Anchors Monitoring


\ Glostrext Instrumentation Method : A novel technology empowering You to make decisions based on Facts

Accredited Calibration Services


GlostrextTechnology

Our aim has always been to provide trusted measurements and monitoring data of highest quality, innovative and cost effective solutions to our clients. Besides having in-house specialized advanced calibration centre for sensors of inclinometer probes, in place inclinometers, tiltmeters, linear variable displacement transducers, extensometer transducers, load cells and others, we maintain strong collaboration with international technologies partners and suppliers on the best practice of quality control and calibration procedure of the equipment and sensors. Our dimensional laboratory is accredited to MS ISO/IEC 17025 by SAMM, Standards Malaysia. Unlike other systems, for our innovative Glostrext Instrumentation Method, in fact each and every sensor can be individually calibrated to ensure reliable measurement in pile instrumentation scheme.


` Glostrext Instrumentation Method : A novel technology empowering You to make decisions based on Facts

Sharing via Structured Training and Research & Development


GlostrextTechnology

We appreciate our talented and passionate people in the Group, encourage teamwork spirit and knowledge sharing to realize their potential and career advancement via structured internal training, courses offered by our international technologies partners, besides actively participating in and continued contribution of publications in regional and international conferences from time to time. Besides in-house specialized high technology services and IoT solutions, we maintain strong collaboration with Universities and our international technologies partners including Geokon Inc. (USA), Worldsensing (Barcelona) and VDV (Iceland) and others. The up-scale research and development of innovative GLOSTREXT pile testing technology by our founder, Ir. Dr. Lee Sieng Kai, in collaboration with University of Malaya, was awarded with numerous national awards, including Gold Medal in the 6th Malaysia Technology Expo (MTE 2007, 29-31 March 2007, Putra World Trade Centre, Kuala Lumpur), Gold Medal in the International Exposition of Research and Invention of Institution of Higher Learning (Pecipta 2007) held in conjunction with World Innovation Forum at Kuala Lumpur Convention Centre, co-organized by the Ministry of Science, Technology and Innovation Malaysia and USM. Internationally, the GLOSTREXT innovation has also successfully won Gold Medal in the British Invention Show (BIS 2007) held from 17th to 20th October 2007, London.

GLOSTREXT TECHNOLOGY SDN BHD

No. 90, Jalan Sentral 28, Taman Nusa Sentral, 79100 Nusajaya, Johor, Malaysia. Tel : +6012-282 1528 / +6012-322 1162 Web : www.glostrext.com

(649873-V)

JB Branch

Our Services and Solutions - GLOSTREXT

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