深井动压巷道锚杆索支护性能分析

Performance Analysis of Bolt and Cable Support in Dynamic Pressure Roadway of Deep Mine

随着浅部煤炭资源的枯竭,煤炭开采深度越来越大,适用于浅部巷道的锚网支护体系不再适用于深部巷道,安徽淮南朱集西煤矿属于千米深井,其中13-1煤层工作面利用卸压保护开采,存在工作面接替紧张问题,13501工作面轨道顺槽在掘进期间将受到不同程度的动压影响,现有锚网支护体系不能解决其围岩大变形问题,因此进行深井动压巷道锚杆索支护性能研究,优化支护方案,保证矿井的安全高效生产。

With the depletion of shallow coal resources, the depth of coal mining is getting deeper and deeper, the bolt mesh support system suitable for shallow roadway is no longer suitable for deep roadway, Anhui Huainan Zhujixi coal mine is a kilometer deep mine, in which 13-1 coal face uses pressure relief to protect mining, there is the problem of face replacement tension, 13501 the track gateway of working face will not be affected by dynamic pressure to a certain extent during excavation,and the existing bolt mesh support system can not solve the problem of large deformation of surrounding rock. Therefore, it is necessary to study the bolt cable support performance of deep mine dynamic pressure roadway, optimize the support scheme, and ensure the safe and efficient production of the mine.