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针对影响深井巷道围岩稳定性的各种因素,以良庄煤矿31506运煤巷为研究背景,结合理论设计法得到的支护参数提出3种巷道支护参数方案。采用FLAC~(3D)数值模拟对每个支护参数方案的应力场、位移场进行分析,最后确定方案2对控制巷道围岩稳定性最为有利。
Aiming at the various factors that affect the stability of surrounding rock in deep tunnel, taking the 31506 coal tunnel in Liangzhuang Coal Mine as the research background, three kinds of parameters of tunnel support parameters are proposed based on the support parameters obtained from theoretical design. The FLAC 3D numerical simulation is used to analyze the stress field and displacement field of each supporting parameter scheme. Finally, it is determined that scheme 2 is most favorable for controlling the surrounding rock stability of the roadway.