In the test, after anisotropic consolidation, keeping the deviator stress, pore water is injected using pore water control apparatus under a constant volumetric strain controlled condition.

It includes electronic universal testing machine and GDS water pressure controller. It is controlled by a computer, and automatic recording data and different stress path test may be achieved.

By conducting stress controlled cyclic triaxial test, in this paper, the behavior of saturated soft clay under the action of undrained cyclic load being studied.