the paper has studied the disruptive mode and the load bearing mechanism of the strip foundation.One model test has been designed to simulate the whole processes from deformation to destruction of the silty clay and the sandy soil foundation.The values in different sites and the distribution rule of earth pressure in the foundation have been analyzed
and the formation and the development process of shear band have been observed.The results show that the model test can well reflect the whole foundation failure process
the subsidence distortion characteristics
the foundation stress distribution
the destruction shape and mechanism.It will be an effective way in studying the disruptive mode and the load bearing mechanism of foundation.