特厚煤层沿空掘进巷道支护技术研究

Research on Support Technology of Roadway Driving along Extra-thick Coal Seam

针对特厚煤层沿空掘进巷道稳定性差的问题,以山西斜沟煤矿23105工作面皮带巷地质条件为基础,通过现场实测的方法对巷道围岩特征进行了分析,研究了原有巷道支护方案的不足,以此为基础对巷道支护方案进行了优化,针对两帮提出了不同的支护方案。根据现场试验结果,巷道围岩变形较小,巷道稳定性提高,表明该研究结果具有较好的效果。

Aiming at the problem of poor stability of roadway along the thick seam in special thick coal seam,based on the geological conditions of the 23105 working face belt roadway in Shanxi Xiegou coal mine,the characteristics of roadway surrounding rock were analyzed by on-site measurement method,and the original roadway support scheme was studied.The shortage of the roadway support scheme was optimized based on this,and different support schemes were proposed for the two groups.According to the field test results,the deformation of the surrounding rock of the roadway is small,and the stability of the roadway is improved,indicating that the research results have a good effect.