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根据节理岩体的特性，按弹簧块体理论模拟节理岩体中大型地下洞室开挖与锚杆支护的变形特征。同时，开展了开挖条件下节理围岩变形特性和锚固效应的模型试验研究，得到不同初始地应力场条件下，大型地下洞室分步开挖和锚杆支护的围岩力学行为的变化规律，数值计算结果和实测结果所反映的节理岩体围岩的运动规律基本一致。
According to the characteristics of jointed rock mass, the deformation characteristics of excavation and bolt support of large underground cavern in jointed rock mass are simulated according to spring block theory. At the same time, a model test study on the deformation characteristics and anchorage effect of surrounding rock under excavation is carried out. Under different initial conditions of in-situ stress field, the mechanical behavior of surrounding rock of step-by-step excavation and bolt support in large underground cavern is changed Regularity, numerical calculation results and measured results reflect the law of movement of surrounding rock in jointed rock mass basically the same.