Effects of Stress Path and Stress History on the Stiffness of Reconstituted London Clay

Soil behaviour is stress history dependent and stress path dependent and soil parameters, particularly those for stress-strain behaviour, measured in conventional triaxial tests may not represent the behaviour of soil in many civil engineering works. To obtain more realistic parameters it may be necessary to conduct laboratory tests which more closely represent in situ conditions before and during construction. The paper describes equipment developed at the City University to carry out stress path tests simply and economically. A series of CU triaxial tests and stress path tests on reconstituted soil illustrate the dependence of measured soil parameters on stress history and stress path