岩石综合抗压强度

Comprehensive Compressive Strength of Rocks

一、前言在固体力学中,固体材料抗压强度是指固体试件在压机上受压破坏时,压机对试件所加的单位面积压力。当今国内外岩石力学界、岩体力学界、材料力学界,都循用这个定义。称如此测得的抗压强度为普通抗压强度。地壳岩体中古构造运动的应力场残留至今的残余值,为古构造残余应力。作者在中国迁西地区(1959)和中国西南部(1991)测得了此种应力;雷拉特(1962)、欧伯蒂(1966)、汉丁(1967)、福利得曼(1967)、丁克霍斯(1967)、霍斯金(1970)、耶格(1972)。

The author proposed that the superimposing field of paleo-tectonic residual stress field and recent tectonic stress field is the dynamic force making crust movement.The comprehensive strength of rock masses under this superimposing stress field should take the superimposing value when they break.This value is named as comprehensive compressive strength.Under the same physical or chemical condition,the comprehensive compressive strength is nearly a constant.This constant has important application worth in petroleum exploration and exploitation,earthquake mechanics research and rock mass engineering design.