一、前言固体在现今所加载荷作用下,当其中所产生的剪应力达到剪切强度极限时,便发生剪切断裂,此时的现今剪应力称为该固体的抗剪强度,这是20世纪以来普遍使用的固体力学概念。当前工程界和地学界使用的都是由此种方法测得的各种固体材料的抗剪强度值。为区别起见,称此种方法测得的抗剪强度为普通抗剪强度。自从在固体中发现了残 I. INTRODUCTION Solid under shearing load nowadays, shear shear occurs when the shear stress generated in it reaches the limit of shearing strength. The current shear stress at this time is called the shear strength of the solid, which is 20 The concept of solid mechanics commonly used since the century. Current engineering and geosciences use all the shear strength values ​​of various solid materials measured by this method. For the sake of difference, the shear strength measured by this method is called ordinary shear strength. Since the residue was found in the solid