通过理论计算,初步分析了德鲁克普拉克屈服准则与岩石类材料断裂韧度之间的关系。分析结果表明岩石类材料所发生的滑移现象,其实是通过存在于岩石中大量的岩石微粒在进行自身滑移的同时发生的,当滑移现象满足的基本的条件是建立在满足D-P准则的时候,就可以把岩石发生拉剪破坏这种情况时候看作和满足D-P准则是相同的。 Through theoretical calculation, the relationship between Drucker-Prakt yield criterion and fracture toughness of rock-like materials was analyzed. The analysis results show that the slip phenomenon occurred in rock-like materials actually occurs through a large number of rock particles existing in the rock while self-slipping. The basic condition for the slippage phenomenon to be satisfied is based on When the time can be rock tensile shear failure of this case as and meet the DP guidelines are the same.