浅埋煤层软岩顶板巷道支护参数优化

Optimization of Support Parameters of Roadway With Soft Roof in Shallow Seam

摘要: 以高家梁煤矿20107工作面地质和开采条件为背景，综合采用多点位移计、钻孔电视、锚杆（索）测力计和钻孔应力计进行巷道矿压观测，在此基础上提出3种巷道支护参数优化方案，并采用数值模拟方法确定了最优方案。结果表明，随着工作面的推进，巷道两帮变形明显比顶板剧烈，超前支承压力峰值位置在工作面前方15～22 m；采用方案2进行支护参数优化可将巷道变形控制在合理范围内，且经济效益较好。
- 浅埋煤层 /
- 软岩顶板 /
- 矿压观测 /
- 支护参数优化 /
- 数值模拟
Abstract: Taking the geological conditions of 20107 working face in GaoJialiang Coal Mine as background, multi-bases displacement monitoring device, borehole television, anchor dynamometer and borehole stress were used to conduct roadway pressure observation. Three optimization programs of roadway support parameters were put forward, and the best program was determined by numerical simulation method. The results show that horizontal deformation of roadway was more severe than vertical deformation, the peak of advanced abutment pressure is 15 m to 22 m ahead, and roadway supported using the second program is well maintained.
- shallow seam /
- soft roof /
- mine pressure observation /
- support parameter optimization /
- numerical simulation

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