南沟煤矿蹬空区首采工作面两巷支护参数选择

Selection of Support Parameters of Two Roadways in the First Mining Face of Driving Goaf in Nangou Coal Mine

针对南沟煤矿蹬空区首采工作面两巷围岩破碎、不稳定的情况,依据加固拱理论和悬吊理论计算两巷的支护参数,确定两巷支护采用"锚网索+钢带+长短锚索"控制方案,确定支护参数,巷道稳定性有了显著提高。

Aiming at the broken and unstable surrounding rock of the two roadways in the first mining face of the driving goaf of Nangou Coal Mine,the support parameters of the two roadways are calculated according to the reinforcement arch theory and suspension theory,and the control scheme of"anchor mesh cable+steel belt+long and short anchor cable"is determined.The support parameters are determined,the stability of the roadway has been significantly improved.