摘要
从填砾式钻孔结构存在的不足论述了扩孔式钻孔结构的试验和应用情况,施工工艺由裸孔钻井、套管安装、逆向注浆固井、孔内钻进、扩孔和内置过滤器安装几部分工序构成,具有明显的优越性,运行中满足地浸矿山对水量的要求,具有洗井简单、施工质量好、施工成本低和资源回收率高的特点。
From gravel filling type drilling structure of underreaming type drilling structure is discussed,and the test and application of construction technology by bare hole drilling,casing installation,reverse grouting cement,hole drilling,reaming and built-in filter installed a few part of the process,have the obvious superiority,in the operation of the meet the requirements of in-situ leaching mining on water,wash well with simple,good construction quality,construction of the high cost is low and the recovery rate of resources.
作者
李喜龙
张勇
张渤
高险峰
季扬威
LI Xilong;ZHANG Yong;ZHANG Bo;GAO Xianfeng;JI Yangwei(Tongliao Uranium Co.,Ltd.,CNNC,Tongliao 028000,China)
出处
《中国矿业》
北大核心
2019年第9期111-115,共5页
China Mining Magazine
关键词
扩孔式
钻孔结构
铀矿
underreaming type
drilling structure
uranium deposit
