However, the caving maybe happen because of too large transmogrification and rheologic fracture to high crustal stres.
统一流变断裂准则，最终形成了诱导条件下节理岩体持续大规模自然崩落判据。
It is found that the rational located destressing boreholes can induce structural failure of the surrounding rock-mass,consequently the high stress move deeply in the rock-mass,and the stres...