西铭矿42206工作面皮带巷沿空留巷支护技术研究

Study on Support Technology of Gob-side Retaining Roadway in 42206 Working Face of Ximing Coal Mine

针对西铭煤矿42206工作面皮带巷沿空留巷支护困难等问题,巷道原支护方式为螺纹钢锚杆、钢带、锚索联合支护;通过理论分析和工程经验重新核定了沿空留巷充填体各项参数;确定了巷内加强支护、充填区域顶板支护、采空区档杆及留巷段加强支护方案,通过现场应用,该支护方案可以保证沿空留巷的稳定,并取得了很好的经济效益。

Aiming at the difficulties of Retaining Roadway along goaf in 42206 working face of Ximing Coal Mine,the original support mode of roadway is combined support of screw steel bolt,steel belt and anchor cable.Through theoretical analysis and engineering experience,the pa-rameters of filling body of Retaining Roadway along goaf are refined,and the reinforcement support in roadway,roof support in filling area and stopping rod in goaf are determined.Through field application,this support scheme can ensure the stability of gob-side retaining roadway and achieve greater economic benefits.