综掘煤巷空顶参数优化及应用

Optimization and application of empty roof parameters of fully-mechanized coal roadway

针对霍尔辛赫煤矿西辅运大巷掘进速度慢、施工工序不合理等问题,分析了影响掘进速度的主要因素,采用数值模拟优化了掘进施工的空顶距离,通过现场实测改进了平行作业及临时支护工艺。工业性试验结果表明巷道围岩变形在控制要求范围内,掘进速度由270m/月提高至380m/月,取得了显著的经济技术效益。

For the problems of slow tunneling speed and unreasonable construction process in the west auxiliary roadway of Huoerxinhe Coal Mine, the main factors affecting the tunneling speed were analyzed, the numerical simulation was used to optimize the empty roof distance of the tunneling construction, and the parallel operation and temporary support technology were improved through on-site measurement. The industrial test results show that the roadway surrounding rock deformation is within the control requirements, and the excavation speed is increased from 270 m to380 m every month, which has achieved significant economic and technological benefits.