塔拉壕矿软岩大巷支护参数优化研究  

Supporting Parameter Optimization of Soft Rock Main Roadway in Talahao Mine

作　　者：李志军 吕坤[2] 李臣[2] 高旭[2] 

机构地区：[1]内蒙古伊泰煤炭股份有限公司塔拉壕煤矿,内蒙古鄂尔多斯017000 [2]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭技术》2017年第3期32-34,共3页Coal Technology

摘　　要：针对塔拉壕煤矿2煤大巷软弱围岩的条件,采用数值模拟对大巷围岩塑性区进行分析。结果显示顶板最大破坏深度1 m,帮部破坏不明显,结合理论分析对大巷支护参数进行了优化设计。工程试验表明:巷道最大位移量约10 mm,位移主要发生在顶板上方0~2 m,巷道能够保持稳定。According to No. 2 coal main roadway soft rock conditions,the plastic zone of surrounding rock is analyzed by numerical simulation. The results show that maximum roof failure depth is 1 m, destruction of roadway side wall is not obvious,based on the theoretical analysis, the optimization design of supporting parameters of main roadway is carried out. Engineering test shows that the maximum displacement of roadway is about 10 mm, displacement occurs mainly in the 0-2 m range above the top of the roof, roadway can maintain stability.

关 键 词：软岩大巷 支护参数优化 围岩监测 

分 类 号：TD353[矿业工程—矿井建设]