Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Kiso-Jiban’s Soil and Rock Mechanics Laboratories
Kiso-Jiban has soil and rock mechanics laboratories in Japan (Tokyo, Osakaand Hiroshima), Singapore and Malaysia. Kiso-Jiban laboratories areinternationally well known as high technical and quality soil and rock laboratories.
Kiso-jiban laboratories are equipped by advanced automatic testing apparatuses
to perform various types of soil and rock tests. The laboratories are operated andmaintained by well-trained laboratory technicians. Number of our laboratory staff
can be minimal because of their efficient working manner and advanced
automatic testing apparatuses. The numbers of staff are summarized below;

Kiso-Jiban Laboratory

Number of Staff

Tokyo

14Osaka

5Hiroshima

2Singapore

9Malaysia

4Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Type of Tests
The following types of tests are conducted by Kiso-Jiban Laboratories;(1) Soil Tests
 Index Property Tests
 Unconfined Compression Test
 Static Triaxial Compression Tests (UU, CIU, CID) on saturated andunsaturated soils
 Cyclic Triaxial Tests (deformation, liquefaction)
 Direct Shear Test (Constant Pressure Shear, Constant Volume Shear)
 Simple Shear Test
 Consolidation Test Poisson’s Ratio Measurement
 Permeability Test
 Dispersion Test
 Maximum and minimum dry densities
 CBR
 Compaction Test

Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Automatic Triaxial Test Apparatus

Cyclic Triaxial Test

Direct Shear Test

Consolidation (Oedometer) Test

In addition to the above conventional soil tests, the following special tests canbe carried out upon client’s request. Custom made testing such as large scaletesting using a test chamber is also available.

Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Automatic Triaxial K0 Apparatus

Triaxial Compression Test on
Unsaturated soil

Cyclic Torsional Shear Test

Large Size Triaxial Test

Constant Rate of Strain Consolidation
Test

High Pressure Direct Shear Test

Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Pulse Velocity Measurement in Triaxial
Cell

Local Deformation Transducer (LDT) on
Specimen(2) Rock Test
 Water Content and Unit Weight Measurement
 Uniaxial Compression Test Point Load Test
 Triaxial Compression Test
 Ultrasonic Wave Velocity Measurement

Triaxial Compression Test on RockUltrasonic Wave Velocity Measurement

Kiso-Jiban Consultants Co’Ltd
Soil/Rock Mechanics Laboratory

Standards
The laboratory testing is conducted in accordance with the following standards
and codes.
 British Standard, B.S. 1377; 1990
 ASTM Standard Japanese Industrial Standard
 JGS (Japanese Geotechnical Society) Standard
 ISRM (International Society for Rock Mechanics) commission on testing
methodQuality Control
All the Kiso-Jiban Laboratories have ISO9001:2000 certificate. Kiso-JibanSingapore Laboratory is accredited also by SAC-SINGLAS (SAC (SingaporeAccreditation Council) is the national authority for the independent accreditationof conformity assessment bodies in Singapore.). Quality manual covers primarily
Test Procedure, Data Control, Calibration of Testing Apparatus, Control of Nonconforming data, Quality Audit, Staff Training, Equipment Maintenance, etc. Inaddition, to keep the technical competence of the laboratories at the highest level,
the engineering managers with a degree of civil engineering (geotechnical) havebeen appointed as engineers in charge of laboratories and they oversee and adviseon the execution, maintenance, quality control and development of testing.
As a part of quality control, Kiso-Jiban Laboratories participate in interlaboratory comparison and proficiency testing program prescribed byGovernment Agencies.