塔山煤矿大断面切巷施工与支护技术

Construction and support technology of large section open-off cut in Tashan Coal Mine

工作面大断面中切巷在施工过程中采用分次掘巷的施工工艺,降低了施工难度,提高了掘进速度,同时便于工作面稳装运输设备,顶板采用锚杆、锚索、组合锚索联合支护,有效控制了大断面围岩形变,保证了作业安全,为特厚复杂煤层中全煤巷超大断面切眼支护提供了有力的依据,成功解决了综放工作面中切巷支护难的问题。

The large section open-off cut usually uses the many times driving construction process in the construction process, which reduces the construction difficulty, improves the driving speed, at the same time, facilitates the transport equipment, the combined support of bolt, anchor cable and combination anchor is used in roof, which effectively controls the large section roadway deformation, ensures the safe operation, provides a strong basis for large section open-off cut support of thick complex coal seam, and successfully resolute the cut hole support problem.