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引言本文利用极限分析的上限定理对锥形压头侵入岩石进行了近似分析。设岩石满足有小的张力破坏区的莫尔-库伦屈服条件。为了预测几何变化,根据非连续流变准则提出两种可能变形过程的运动学机理。实验观察了岩石中的某些现象,为了近似分析而估算了岩石变形时的膨胀及强度的下降。对锥体压入时岩块分裂问题进行了极限分析的运动
INTRODUCTION In this paper, an upper bound theorem of the limit analysis is used to approximate the intrusion of a conical indenter into a rock. Let the rock meet the Mohr-Cullen yielding condition with a small area of tension failure. In order to predict geometric changes, two kinematic mechanisms of possible deformation processes are proposed according to the discontinuous rheological criterion. Some phenomena in the rock were observed experimentally, and for the approximate analysis, the expansion and the decrease in the strength of the rock were estimated. The limit analysis of rock mass fission was carried out when the cone was pressed in