摘要
近年来,随着煤矿开采深度的不断增加和钻探技术的发展,矿井井下补勘钻孔施工量也明显增多,本文以济北矿区葛亭煤矿230采区水文地质补充勘探井下钻孔的施工为例,介绍了井下超深钻孔的施工技术方法,总结了煤矿井下深立孔钻探的施工经验,为以后同类工程施工提供了参考.
With the increase in mining depth and development of drilling technology, supplementary exploration borehole work becomes frequent in underground coalmines. Taking underground supplementary hydrogeological exploration boreholes in mining zone 230, Getting coalmine, Jibei coalfield as example, this paper introduced the working technology and method for underground ultra-deep boreholes, summarized underground construction experiences in deep vertical drilling and provided a reference for the same kind of work in the future.
出处
《安徽地质》
2005年第4期270-273,共4页
Geology of Anhui
关键词
井下深立孔
钻探技术
济北矿区
underground deep vertical borehole
drilling exploration technology
Jibei coalfield
