特厚煤层煤巷支护优化

Optimization of coal roadway support in extra-thick seam

以同煤集团同忻矿北二盘区8202工作面5202巷为研究对象,通过采用工程类比法以及进行Flac3D数值模拟分析,对其巷道进行锚杆支护设计的分析和改进,对比不同支护方式下巷道受力情况,表面和深部位移情况以及塑性区状态及分布范围,分析得出较为安全、合理的支护方案。

Take the 5202 roadway of the 8202 working face in Tongxin Mine of Tongmei Group as the research object.Through the use of engineering analogy and Flac3D for numerical simulation analysis.Analysis and improvement of bolt support design for its roadway.Comparing the stress conditions,surface and deep displacement conditions,plastic zone status and distribution range of the roadway under different support methods,the analysis shows a safer and reasonable support plan.