水淹采空区邻矿工作面顶板突水帷幕注浆堵水技术研究

Curtain grouting for water-blocking in working face roof water bursting adjacent to flooded goaf

为了有效治理新安煤矿16020回采工作面顶板突水,探讨了顶板突水在邻矿老空水补给情况下的治理技术。结果表明:首先通过水位、水质、水温等因素对其突水水源和导水通道进行准确快速判别,再利用帷幕注浆堵水切断顶板水补给通道在本次顶板突水治理中具有明显效果,历时三个月成功封堵补给通道,堵水取得成功。对于有老空水补给的顶板突水,帷幕注浆切断补给通道是一种行之有效的治水方法,该技术方法对具有相似类型顶板突水的矿井具有一定的借鉴意义。

In order to control the roof water inrush of 16020 working face in Xin’an Coal Mine,the roof water bursting control technology is discussed when the adjacent goaf water is replenished.It is proposed to accurately and quickly judge the water source and the water channel by factors such as water level,water quality,water temperature,etc.,and then use curtain grouting to block the roof water supply channel.According the practice,the water control effect was obvious,the water supply channel was blocked in 3 month.For the roof water bursting from goaf,curtain grouting is an effective method to cut off the water channel,which can offer certain references for mines with similar problems of roof water bursting.