论文部分内容阅读
介绍了在暴雨山煤矿主井井筒施工中 ,采用工作面小孔注浆封水穿过平顶山砂岩含水层的技术经验。通过小孔注浆 ,堵水率达到 94 4 % ,取得良好的技术经济效果
This paper introduces the technical experience of sealing the water through the Pingdingshan sandstone aquifer with the small hole grouting in the face of the main shaft in the construction of the main shaft of the Yuyunshan Mine. Grouting through the holes, the water plugging rate of 94 4%, and achieved good technical and economic results