大跨度地下硐室开挖的模拟分析

Simulating Analysis of LargeSpan Underground Chamber Excavating

在大跨度地下硐室的开挖过程中，采用不同的开挖顺序，对围岩的稳定性具有显著的影响。用有限元法寻求最佳开挖顺序，可使围岩受损程度和范围减小，从而确保硐室开挖的安全进行。

n the process of largespan underground chamber excavating,various excavating sequences have obvious influence on the stability of surrounding rock.Thereby,the finite element method is used to find the optimal excavating sequence so that the extent and area of surrounding rock damage is reduced to ensure the safe excavating of underground chamber.