霍尔辛赫煤矿3号煤层皮带巷支护优化分析

本文将霍尔辛赫煤矿3号煤层皮带巷出现的变形破坏问题作为研究对象,对皮带巷出现的变形破坏原因进行了研究,分析认为导致皮带巷出现较大变形破坏的主要因素是巷道所处地段地质条件复杂、原支护设计不合理、围岩自承能力未充分发挥等原因。结合皮带巷所处实际地质条件,设计“锚网索+U钢+柔性层”复合支护方案对皮带巷进行返修,从返修情况来看,取得了较好的返修支护效果。

Optimization analysis of No.3 coal seam belt support in Horsinghe Coal Mine

In this paper,the deformation and failure of Belt Lane in No.3 Coal Seam of Horsinghe Coal Mine is taken as the research object,the cause of deformation and failure of Belt Lane is studied,and the main factor leading to large deformation and failure of Belt Lane is the roadway The geological conditions of the location are complicated,the original support design is unreasonable,and the self-supporting capacity of the surrounding rock is not fully exerted.Combined with the actual geological conditions of the belt roadway,the"anchor net cable+U steel+flexible layer"composite support scheme was designed to repair the belt roadway.From the point of view of the repair work,a better repair support effect was achieved.