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1引言隧道开挖中需要知道压力水通过裂隙介质的渗透性及衬砌上的水压力与堵排水之间的关系,以及在无水条件下各种不同开挖方法、支护措施下围岩中应力、位移的分布特点。为了模拟隧道开挖的实际环境,需要建立水压系统和隧道模拟加载系统。水压系统模拟山体中的渗透水,模拟加载?
1 Introduction Tunnel excavation needs to know the permeability of pressure water through the fracture medium and the relationship between the water pressure on the lining and drainage and drainage, and various excavation methods under anhydrous conditions. The surrounding rock in support measures Stress and displacement distribution characteristics. In order to simulate the actual environment of tunnel excavation, hydraulic system and tunnel simulation loading system need to be established. Hydrostatic system simulates the infiltration of water in the mountain, simulated load?