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本文在明确区分了岩石材料的破坏与岩石工程系统失稳破坏不同含义的基础上，提出在用数值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。文中运用系统能量的原理，借助突变理论的方法推导出了岩体工程开挖系统失稳破坏的能量突变准则，并将其引入进有限元数值计算中去判断岩体工程系统失稳的可能性。通过工程实例分析，证明所提出的观点和判断准则是正确的，具有一定的实用价值。
In this paper, on the basis of clearly distinguishing the different meanings of rock material destruction and instability failure of rock engineering system, it is proposed that in the numerical simulation of underground rock excavation engineering and practical engineering design, rock material destruction and rock should not be simply The destruction of the engineering system is judged by the same damage criteria. In this paper, the principle of system energy is used to derive the energy catastrophe criterion of rock-mass engineering excavation system by means of catastrophe theory, and it is introduced into finite element numerical calculation to determine the possibility of instability of rock engineering system. . Through engineering examples analysis, it is proved that the proposed viewpoints and judgment criteria are correct and have certain practical value.