复杂条件下掘进巷道顶板支护优化设计

Design of Optimization of Roof Support in Tunneling Roadway under Complex Conditions

在复杂条件下,井下巷道顶板支护容易出现稳定性差等缺陷,给综采作业安全带来威胁。为探究有效的顶板支护方式,结合工程实例对原有巷道顶板支护方案缺陷展开了分析,对锚杆和锚索支护方式进行优化的同时,完成了锚棚和桁架支护设计,从支护效果来看能够使井下作业安全性得到有效提升。

Under complex conditions,the roof support of underground roadway is prone to the defect of poor stability,which threatens the safety of fully mechanized mining operation.In order to explore the effective roof support method,combined with engineering examples,the defects of the original roadway roof support scheme were analyzed.The bolt and anchor cable support methods were optimized,and the anchor shed and truss support design was completed.From the support effect,the safety of underground operation was effectively improved.