The mechanism of msw ' s shear strength is stated in this thesis . the underlying cause for the phenomenon that the cohesion of msw increases with depth while angle of shear resistance does n ' t is detailed explained in this paper
2.
The results showed that the displacement of the surrounding rock of cavern evidently decreases with the increase of in - situ stress side pressure coefficient , as well as the decreasing rate of surrounding rock displacement of cavern with increasing at the condition of < 1 are significant larger than that of > 1 ; when < 1 , the displacements of measured points in cavern increase then decrease with the increasing incident angle of shear wave , while , when > 1 , the displacements decrease then increase with the increasing incident angle of shear wave , and the influence of incident angle on the displacements of measured points tends to decrease with the increasing in - situ stress side pressure coefficient