Standard Penetration Test Sampler for Surveying investigation. Detailed products:. Geotechnical investigation. Standard penetration test. The standard penetration test SPT is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. A detailed description of SPT test and procedure can be found on the geotechnical data.
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All the three tests measure the resistance of the soil strata to penetration by a penetrometer. Useful empirical correlations between penetration resistance and soil properties are available for use in foundation design. This is the most extensively used penetrometer test and employs a split-spoon sampler, which consists of a driving shoe, a split-barrel of circular cross-section which is longitudinally split into two parts and a coupling.