摘要
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。
The driving force of the present crustal movement is a superimposition of present tectonic stress field and paleo-tectonic residual stress field. In which shear strength of rocks should depend on the superimposition of present and residual stress value, named as comprehensive shear strength. For same rock body and equal physical conditions, the comprehensive shear strength is approximately constant. This constant value has important significance in rock-body engineering design, petroleum prospecting and oil development, as well as in seismic hazard zonation.
出处
《地壳构造与地壳应力文集》
2002年第1期97-102,共6页
Bulletin of the Institute of Crustal Dynamics
