复合顶板巷道围岩控制技术的应用实践

Application of control technology of surrounding rock in compound roof roadway

随着煤矿开采时间的不断增加,煤岩复合顶板巷道经常会出现脱落、返修、变形等,给煤矿生产带来安全隐患。本文结合某煤矿的具体情况,对煤岩复合顶巷道的失效原因进行了分析,通过对巷道的锚杆、锚索支护参数的优化,结合巷道的地质特点,增加锚杆、锚索强度,增加支护密度,对复合顶板巷道的支护形式进行了改进,提高了其稳定性。

With increasing time of coal mining, coal and rock roadway with combined roof often appear shedding, repairing, deformation, which bring security risks to the coal mine production. Combined with the specific circumstances of a coal mine, analyzes the failure reasons of coal roadway with compound roof, by optimized the bolt and cable anchor support parameters, combined with the geological characteristics of the roadway, increasing strength bolt and cable anchor, and support density, the compound roof roadway supporting form was improved, which improves the stability.