Foundation Testing
 
Koden (bell-out) test
 
Quality control tests to ensure the integrity and performance of foundations
 
FT Laboratories was the first company to provide PDA and CAPWAP testing in Hong Kong in 1979. Since then the foundation department has been at the forefront of foundation testing in Hong Kong.

FT offers a full range of tests for all types of foundations.
 
Benefits of using FT's service
 
. Tests conducted by an experienced team, some engineers with over 20 years of testing experience.
. Some of the tests are HOKLAS accredited as listed in HOKLAS Directory of accredited laboratories- see Qualifications section for links.
. Multi-jack load tests for Hong Kong’s tallest building (118 storey) to 46,000kN.
. FT has carried out foundation testing worldwide, with tests in Lebanon, UAE and Panama in the last couple of years.
Sonic logging test
 
Test method with typical application:

CAPWAP Analyzer
Þ Case Pile Wave Analysis Program for detailed analysis of pile
Instrumented Pile
Þ Strain gauge and other instruments installed
Þ Skin friction & end-bearing distribution
Load test
Þ Static (single or multi-jack)
Þ Plate load
Þ Constant rate of penetration test
Parallel Seismic Test
Þ Pile length
Þ Concrete quality
Þ Bell-out quality
Þ Bulking
PDA (Pile driving Analyzer Test)
Þ Pile integrity
Þ Pile capacity
Þ Pile length
Þ Driving stresses
Þ Hammer efficiency
Þ Deflection characteristics of hammer cushion
PIT (Pile Integrity Test)
Þ Pile integrity
Þ Dynamic stiffness
Þ Pile length
Sonic logging test
Þ Honeycombing
Þ Necking
Þ Pile integrity
Þ Interface quality
Ultrasonic Method (Koden & bellout tests)
Þ Verticality
Þ Bell-out and shaft profile
Video Inspection
Þ Impact velocity of driving hammer
Þ IRock/concrete interface
 
Foundation types tested:

Þ Barrette
Þ Bored pile
Þ Cast-in-place pile
Þ Composite pile
Þ Diaphragm wall
Þ H–pile
Þ Jacking pile
Þ Mini pile
Þ Pakt-in-Place (PIP) pile
Þ Pipe pile
Þ Pre-bored H-pile
Þ Pre-stressed concrete pile (Daido)
Þ Sheet pile
 
Multi-jack load test—for Hong Kong’s tallest building.
 

Technical Enquiry: Mr. Tony Kwok
Tel: +852 2758 4861
E-mail: tony.kwok@ft.com.hk
Deputy Contact Person: Mr. W.C. Yue
Tel: +852 2758 4861
E-mail: wcy@ft.com.hk