SITE INVESTIGATION
SITE INVESTIGATION
Site Investigation, S.I (or commonly known as Soil Investigation in Malaysia) are crucial in all construction projects. Site Investigation is usually performed by drilling Boreholes into ground to obtain information on the physical properties of soil and rock around a site for the purpose of earthworks and foundation design of the proposed structures. The soil investigation techniques are also applicable for repair of distress to earthworks and structures caused by subsurface conditions.
To obtain information about the soil conditions below the ground, some form of subsurface exploration is required. Methods of observing the soils below the surface, obtaining samples, and determining physical properties of the soils and rocks include test pits, boring and in situ tests.
Test Pits can be carried out by manual hand dug with shovel or machine excavated up to 4.5m deep for the purpose of soil sample collection and observing soil condition. This technique is usually applicable only for low rise developments where it does not involve deep foundation.
For deep soil boring, the most commonly used technique is Rotary Wash Boring, where our drilling rig can bore up to 100m depth, depending on site condition. Disturb and Undisturbed soil samples can be collected by Split Spoon (SPT Sampler), Piston Sampler, Thin wall tube, Mazier, etc. When a rock layer is reached, coring method can be used to core through the rock and collect rock samples.
In situ test which were commonly carried out during soil testing includes Mackintosh Probe Test, Standard Penetration Test (SPT), Vane Shear, Dynamic Cone Penetration (DCP) and Cone Penetration Test (CPT)
All the results and findings obtained from the Site Investigation Works would be presented in Factual Geotechnical Report which consist of Borelog (with Soil Descriptions, In-Situ test result) and also Laboratory Test results.
Here are some detailed description of few typical terms and techniques which is commonly used in Site Investigation works:
Best regards,
Phiger Leo
Direct Line: 0086-137-6419 5009
WeChat/WhatsApp:: +86-137-6419 5009
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