In this paper, FLAC3D is adopted to simulate the mechanical behavior and deformation characteristics with different excavating method and excavating sequence of large section cavern within soft rock.

• 运用三维有限差分数值计算软件(FLAC3D),模拟分析了软岩大断面硐室围岩由于开挖方法、开挖顺序的不同而产生不同时效变形与应力状态的力学响应及变形特性。