With over 80 years’ experience of in situ testing, SOCOTEC offer a high level of technical knowledge and practical support in in-situ field testing.
In situ testing (also known as field testing) provides a complementary means of determining ground conditions and material parameters to supplement testing carried out by sampling and laboratory testing.
The approach has advantages where recovery of undisturbed samples is problematic (eg sands and gravels), and where the ground behaviour may be controlled by structure (eg bedding and discontinuities) on a larger scale than visible in sampling. In situ testing is also used to obtain information for highways pavement design and for earthworks construction validation.
In situ tests are generally quicker to perform and often provide a depth profile rather than just a single result. SOCOTEC offer a wide variety of test types which may be performed within boreholes and installations, and as standalone activities on the surface and intrusively.
In Situ (Field) Testing and Monitoring
Probing
- Cone Penetration Testing (CPT)
- Dynamic probing (eg DPH, DPSH-B)
- Mackintosh probing
- Dynamic Cone Penetration (DCP)
- Mexecone
- Peat probing
- Cone Penetration Testing (CPT)
- Dynamic probing (eg DPH, DPSH-B)
- Mackintosh probing
- Dynamic Cone Penetration (DCP)
- Mexecone
- Peat probing
In Situ (Field) Testing and Monitoring
Geophysics
- Wireline geologging (eg televiewer, P-S suspension sonde)
- Downhole and crosshole seismic
- Tomography
- Wireline geologging (eg televiewer, P-S suspension sonde)
- Downhole and crosshole seismic
- Tomography
In Situ (Field) Testing and Monitoring
Borehole Tests
- Standard Penetration Test (SPT)
- Borehole vane
- Permeability (see below)
- Pressuremeter
- Geophysics (see below)
- Standard Penetration Test (SPT)
- Borehole vane
- Permeability (see below)
- Pressuremeter
- Geophysics (see below)
In Situ (Field) Testing and Monitoring
Permeability Testing
- Variable (rising and falling) head test
- Constant head / constant flow test
- Slug test
- Packer (water pressure) test
- Pumping test
- Soakaway / soil infiltration test
- Variable (rising and falling) head test
- Constant head / constant flow test
- Slug test
- Packer (water pressure) test
- Pumping test
- Soakaway / soil infiltration test
In Situ (Field) Testing and Monitoring
Loading Tests
- Plate bearing test
- Skip test
- Zone test
- Plate bearing test
- Skip test
- Zone test
In Situ (Field) Testing and Monitoring
Highway/Earthworks
- California Bearing Ratio (CBR)
- In situ density (sand / water replacement)
- Nuclear density gauge
- Falling weight deflectometer
- Dynamic Cone Penetration (DCP)
- California Bearing Ratio (CBR)
- In situ density (sand / water replacement)
- Nuclear density gauge
- Falling weight deflectometer
- Dynamic Cone Penetration (DCP)
In Situ (Field) Testing and Monitoring
Monitoring
- Groundwater (standpipe, piezometer, VWP, data logger)
- Groundgas (standpipe, gas clam)
- Inclinometer
- Extensometer etc
- Groundwater (standpipe, piezometer, VWP, data logger)
- Groundgas (standpipe, gas clam)
- Inclinometer
- Extensometer etc
In Situ (Field) Testing and Monitoring
Data Processing
Data processing carried out to derive (according to soil type):
- Soil behaviour type
- Undrained shear strength, Su
- Relative density
- Angle of friction, f'
- Equivalent SPT N60 value
- Consolidation parameters (from dissipation tests using piezocone)
Data processing carried out to derive (according to soil type):
- Soil behaviour type
- Undrained shear strength, Su
- Relative density
- Angle of friction, f'
- Equivalent SPT N60 value
- Consolidation parameters (from dissipation tests using piezocone)
Want to find out more about SOCOTEC's Site Investigation services?
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