压剪条件下岩石破坏机理的探讨  

The discussion about rock's failure under compress-shear condition

作　　者：臧德胜[1] 欧阳连勤[1] 

机构地区：[1]淮南工业学院土木系,安徽淮南232001

出　　处：《矿山压力与顶板管理》2001年第3期78-80,共3页Ground Pressure and Strata Control

摘　　要：岩石的抗压与抗拉强度之比远大于一 ,这是岩石类材料与金属材料的重要区别之一。本文讨论了在压剪条件下微小裂纹发展成破坏面的过程 ,并从椭圆孔周边的应力状态着手 ,得出了岩石类材料的压拉比与内摩擦角之间关系的计算公式。The ratios of rock's compressive tensile strength is more greater than one. It is a important difference between rocks and metals. The circumjacent stress states of ellipse pore decide the process of ellipse pore to excellent crack then to plane of fracture. The formulation has been gained between ratio of rock's compressive tensile strength and angle of internal friction.

关 键 词：岩石强度 压拉强度比 内摩擦角 破坏面倾角 岩石破坏机理 

分 类 号：TD315.1[矿业工程—矿井建设]