黔西南水银洞金矿涌水坑道钻探难点与对策  

Challenges and countermeasures for water kicks in tunnel drilling at Shuiyindong Gold Mine in Southwest Guizhou

作　　者：班金彭 畅利民 代云鹏 谭代卫[2] 郝海洋 付芝康[2] 黄明勇 刘万龙 BAN Jinpeng;CHANG Limin;DAI Yunpeng;TAN Daiwei;HAO Haiyang;FU Zhikang;HUANG Mingyong;LIU Wanlong(115 Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Qingzhen Guizhou 551400,China;105 Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Guiyang Guizhou 550018,China)

机构地区：[1]贵州省地质矿产勘查开发局115地质大队,贵州清镇551400 [2]贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018

出　　处：《探矿工程（岩土钻掘工程）》2019年第11期14-20,共7页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：贵州省地矿局地质科学研究项目“贵州省煤层气井套管-地层一体化胶结防水窜技术研究”(编号:黔地矿科合[2018]26)

摘　　要：针对黔西南水银洞金矿坑道钻探施工中的特大涌水钻孔,总结了该矿区坑道钻探施工难点,研究了涌水对钻进效率和岩心采取率的影响,探讨了普通取心工艺钻进时采用岩心上升系数的实践意义,提出绳索取心工艺钻进时的“泄”、“堵”、“疏”的解决思路,形成了解决该矿区Ⅰa含矿层的坑道钻探施工难点的对策,以期为类似地层条件的坑道钻探提供技术指导。In view of the extra-large water kick volume in tunnel drilling at Shuiyindong Gold Mine in Southwest Guizhou,this paper summarizes the challenges in tunnel drilling,and examines the effect of super-large water kicks on drilling efficiency.In order to overcome these challenges,the practical significance of using the core-lifting coefficient in conventional core drilling is discussed and the countermeasures of“draining”,“blocking”,and“dredging”in wire-line core drilling are put forward,forming the tunnel drilling technology suitable for theⅠa ore seam of the mine.It may provide technical support for other tunnel drilling in similar formation conditions.

关 键 词：水银洞金矿 涌水孔 坑道钻探 绳索取心钻进 岩心上升系数 

分 类 号：P634[天文地球—地质矿产勘探]