Geotechnical Soil Testing
Soil Drilling & Logging - NATA LAB SAMPLING - GROUNDWATER INVESTIGATION
Do I need geotechnical testing?
Geotechnical testing is required for projects which involve either excavation groundwater, dewatering, potential contamination or agricultural capability investigation. Geotechnical testing involves conducting borehole sampling, classifying the sample, and testing the chemical, physical and mechanical properties of the soil. The number and depth of boreholes will depend upon the scale and natural of environmental impact under investigation. For land contamination testing the required number of boreholes is detailed in the NEPM.
Types of geotechnical tests
The exact soil testing required depends on the proposed development and the site conditions and should be determined by an experienced professional. Common tests include:
- Soil moisture content testing (AS1289.2)
- Soil classification testing (AS1289.3)
- Soil chemical & agricultural testing (AS1547)
- Soil permeability & hydraulic conductivity testing (AS1547)
- Soil strength and plasticity testing (AS1289.6)
- Groundwater depth investigation & test wells
- Soil contamination testing (NEPM)
- Acid Sulfate Soils (SPOCAS and Chromium Reducible Sulfur)
- Salinity assessments
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