高抽巷支护技术实践

Practice of supporting technology for high drainage roadway

高抽巷是煤与瓦斯突出矿井瓦斯治理技术之一,工作面回采过程中对抽放采空区和工作面上隅角瓦斯有非常重要的作用。高抽巷支护参数的选择,不仅影响巷道掘进进度,更影响巷道围岩的稳定,影响瓦斯抽放效果。以宏远煤矿150201工作面高抽巷为例,通过综合分析,确定了高抽巷的支护参数,现场支护效果监测表明,取得了较好的围岩控制效果。

The high drainage roadway is one of mine gas control technology of coal and gas outburst, pumping in the process of mining gob and the top comer gas is very important. The selection of supporting parameters of high drainage roadway not only affects the tunneling progress, but also affects the stability of roadway surrounding rock, and affects the effect of gas drainage. Taking the high drainage roadway at the 150201 working face of Hongyuan Coal Mine as an example, the supporting parameters of the high drainage roadway were determined by comprehensive analysis. The monitoring results of field support effect show that the better control effect of surrounding rock is achieved.