Patent ID: 6655220
Filing Date: 2003-12-02
Classification: E02D,E21B,G01N

Abstract:
A method of measuring in situ the deformation moduluses of a soil sample (12) under conditions close to those of a triaxial compression test, the method being characterized by the following steps:driving a corer (1, 4) into the soil (11), the corer being fitted on its inside face with a flexible diaphragm (2); removing the material that leaves the corer (1, 4) through its top orifice as it is being driven into the soil, so as to form a sample (12) of soil for testing inside the corer; holding the corer (1, 4) stationary in the soil in order to proceed with a measurement; exerting pressure forces on the outside face of the diaphragm (2) and on the top face of the sample (12) so as to subject the sample to radial and axial stresses; and measuring the deformations to which the sample (12) is subject.