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 本文阐述了填埋体的抗剪强度机理,解释了填埋材料凝聚力随深度增加而内摩擦角基本不变这一现象的物理根源。