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介绍了数值方法在地下洞室开挖与支护稳定性分析中的应用情况，结合某地下大洞室的设计及施工方案，用有限元法对该洞室的开挖与支护过程进行了有限元模拟，研究了喷锚参数设计问题，为工程设计和现场施工提供了理论指导。
The application of numerical method in excavation and support stability analysis of underground caverns is introduced. Combined with the design and construction of a large underground cavern, the finite element method is used to analyze the excavation and support of the cavern. Metamodel, the parameter design of spray anchor was studied, which provided theoretical guidance for engineering design and on-site construction.