摘要
矿山地质勘探施工中经常遇到漏失、缩径、垮孔等问题,因钻孔环状间隙小,加剧了施工难度,通常在复杂矿层中,我们采用三个方法进行钻孔处理,堵漏效果明显,技术措施可行。
The problems of leakage,shrinkage and hole collapse are often encountered in the geological exploration and construction of mines.Because of the small annular space of drilling holes,the construction difficulty is increased.Generally,in the complex ore bed,we use three methods to drill holes,with obvious plugging effect and feasible technical measures.
作者
韦然
WEI Ran(Hunan Bureau of Geology and Mineral Exploration and Development Bureau 418 Teams,Loudi 417000,China)
出处
《世界有色金属》
2019年第22期212-212,214,共2页
World Nonferrous Metals
关键词
复杂矿层
冲击成孔钻进
地质状况
堵漏
complex ore bed
percussion drilling
geological condition
plugging
