The FLAC3D numerical simulation software was used to simulate the structural relationship between the upper and lower plates of the fault with the contact surface unit,and the mine pressure distribution law and the displacement change law of the fault zone under different fault dip angle and throw when the working face advanced from the fault footwall to the fault plane under the fault geological structure were simulated.The results show that under the normal fault geological structure,taking the mining of the lower face as the research object,when the fault inclination is less than 70° at the distance of 40 m from the fault,the risk of induced rock burst is greater;when the fault inclination is greater than 70°,the risk of rock burst is reduced.
normal faultdip anglenumerical simulationrock burst
NETL
NSTL
万方数据
维普
