摘要
高水头、细裂隙导水、多点分散涌水是望儿山金矿南风井突水淹井的特征,采用定向钻孔疏干放水恢复了被淹5a的南风井。根据数值计算,得出了不同降深地下水补给量的动态变化规律,为该矿南风井疏干放水提供了理论依据。通过采用无止浆垫注浆堵水技术,解决了复杂涌水条件下快速注浆堵水的难题。
Flooding in south air shaft in Wangérshan gold mine was characterized by high water head, permeable fine fissures and dispersed multi - point rush flow. The directive drill holes were used to drainage, and the south air shaft flooded for 5 years was restored. According to numerical calculation, some dynamic change laws of underwater supply at different depths were derived, and provided a theoretical basis for dewatering drainage of south air shaft in this mine. By using a technology of non - stopping slurry cushion grouting to cut - off water, the difficult problem of quick grouting to cut - off water under the complicated condition of rush flow was solved.
出处
《矿业研究与开发》
CAS
北大核心
2006年第B10期154-157,共4页
Mining Research and Development
关键词
淹井
放水疏干
注浆堵水
高压防喷
Flooding shaft, Drainage dewatering, Water cut -off grouting,High- pressure sealing injection
