岩体工程系统失稳的能量突变判断准则及其应用

Criterion of Energy Carastrophe for Rock Project System Failure in Underground Engineering

在明确区分了岩五材料的破坏与岩石工程系统失稳破坏不同含义的基础上，提出了在用有限元计算模拟地下岩石开挖工程和实际工程设计中，不应简单地将岩石材料的破坏与岩石工程系统的破坏用同样的破坏准则加以判断的观点．运用系统能量的原理，借助突变理论的方法，导出了岩体工程开挖系统失稳破坏的能量突变准则，并将其引入有限元程序中，用以判断岩体工程系统失稳的可能性．通过对金川二矿区大面积龙矿柱胶结允填采场稳定性的有限元模拟分析，证明所提出观点和判断准则是正确的，只有一定的实用价值．

The difference in meaning between rock material failure and rock project failure while losing its stability is distinguished. Based on the idea, it is incorrect that rock falure criterion and rock project failure are conisdered identical in numencal calculation for underground project and in-situ project design.Simultaneously, with the aid of system energy principle and catastrophe theory, the criterion of energy catastrophe for rock project system failure is put forward and used in the calculation of the flnite element method (FEM) to judge the probability of rock project system failure.Proved by the real project, the ideas and criterion are correct and of certain value, the results of calculation coincide with the state of the mining proJect.