Seismic test are carried out to measure shear (S wave) and compression wave (P wave) velocities in soils. The SCPT method combines the seismic test with results from the CPTU probe, and will give you a good basis for evaluation of a number of critical soil properties, e.g. the risk for liquefaction.


Please refer to separate literature for detailed information on scientific background and evaluation methods.


The wave is normally generated at the ground surface. A modified sledgehammer and a metallic plate form a simple and reliable wave source for use on land.


The seismic adapter is to be connected immediately behind the CPT probe. It is available with one-axial or three-axial sensor.


The trigger signal is generated when the hammer is hit against the steel plate. The signal from the seismic adapter is captured by the SCPT box and transferred to the SCPT-LOG software in the logging computer.


The seismic system can be delivered as add-on equipment to your existing CPT system or together with CPTU equipment as a complete turn-key plug-and-play package.



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Ingenjörsfirman Geotech AB
Datavägen 53
SE-436 32 Askim
Phone: +46 31 28 99 20
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