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地应力是巷道围岩发生变形破坏与运动的根本动力,因此在地应力实测的基础上,对综放沿空掘巷锚杆支护参数进行优化设计。首先,采用应力解除法进行了地应力实测,在此基础上,采用FLAC~(3D)对综放沿空掘巷锚杆支护参数进行模拟计算。通过对比分析提出了巷道的优化支护方案,并进行现场应用。在应用过程中,对巷道围岩变形进行监测。
Geostress is the fundamental motive force of deformation, destruction and movement of surrounding rock in roadway. Therefore, on the basis of measurement of ground stress, optimization design of bolting parameters for roadway driving along next goaf in fully mechanized caving face is carried out. First of all, the stress relief method was used to measure the earth stress. On this basis, FLAC 3D was used to simulate the bolting parameters of roadway driving along next goaf. Through contrast analysis, proposed the optimal support plan of roadway, and carries on the scene application. During the application process, the surrounding rock deformation of the roadway is monitored.