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Photo: SGI

Geothechnical laboratory

We perform geotechnical analyses of soils and residual materials to assess their mechanical and hydraulic properties.

We investigate soils and residual materials to accurately describe their mechanical and hydraulic properties.
Our testing methods include both standard and specialized approaches.

Our Services

  • Research and consultancy projects

  • Development of laboratory methods and testing equipment

  • Accredited testing methods in accordance with SS-EN ISO/IEC 17025

Method development

En närbild av en maskin som står på ett bord.

Photo: SGI/Torbjörn Thuresson

The vane shear test

The vane shear test is a simple and rapid method for determining the undrained shear strength of clays. The testing equipment and methodology have been developed at SGI's geotechnical laboratory.

During the test, a vane is pressed into an enclosed soil sample, creating a well-defined shear failure. Deformation and force are measured throughout the test, allowing for the calculation and evaluation of the undrained shear strength.

Due to its simplicity and strong correlation with undrained direct shear tests, the vane shear test is a cost-effective complementary method, especially useful when frequent determinations of undrained shear strength are needed within a soil profile.

Read the report