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为控制受动压影响下的主煤仓及附近巷道的变形破坏,针对方山煤矿21040跨采工作面的围岩特性及煤仓的生产地质条件,采用FLAC~(3D)数值计算软件模拟跨采面推进过程中与煤仓及巷道距离不同时围岩的位移规律。根据动压影响下巷道围岩变形规律,确定对主煤仓进行井圈加固及对附近巷道进行锚杆锚索加固。
In order to control the deformation and failure of the main coal bunker and nearby roadway under the influence of dynamic pressure, according to the characteristics of surrounding rock of 21040 cross-mining face in Fangshan Coal Mine and the production geological conditions of coal bunker, numerical simulation software FLAC (3D) Displacement Law of Surrounding Rocks with Different Distances from Coal Bunker and Roadway in Coal Face Advancing Process. According to the deformation law of the surrounding rock under the influence of dynamic pressure, it is determined that the main coal bunker can reinforce the well ring and reinforce the anchor bolt and cable in the nearby roadway.