摘要
钻孔抽采煤矿井下瓦斯,是我国煤矿业高效治理、预防瓦斯灾害的重要措施。为深入探讨井下瓦斯定向抽采钻孔技术在提高煤矿安全性中的关键作用,笔者以概述井下瓦斯预抽技术为出发点,分析了扇形布孔、倾向布孔、常规钻孔布孔的具体内容,并在此基础上,全面介绍了井下瓦斯定向抽采钻孔技术,诸如顺层瓦斯钻孔布置技术、井下瓦斯穿层抽采技术与井下瓦斯钻孔施工技术,以及定向钻进系统的主要内容。
Draining mine gas with drilling is an important measure of high effetively controlling and preventing gas disasters in Chinese coal industry. In order to further discuss the key role of the dr!lling technology in underground gas directional drainage in improving safety in coal mines,the author takes an overview of underground gas pre-pumping technology as a starting point, analyzes the fan-shaped holes inclined hole arrangement, the specific content of the conventional drill hole arrangement, and on this basis, comprehensively introduetes direct underground gas pumping mining drilling technology, such as： bedding gas drilling layout technology, the underground gas wear layer technology and underground gas drainage drilling construction technology, as well as main content of the directional drilling system.
出处
《煤炭技术》
CAS
北大核心
2013年第12期91-93,共3页
Coal Technology
关键词
井下
瓦斯
定向抽采
钻孔
underground
gas
directional drainage
drilling
