摘要
简述了陈台沟铁矿区地层的岩性及结构构造情况,总结了该矿区钻探施工所遇到的坍塌、掉块、漏水、涌水、缩径等不良地质现象所带来的施工问题,厚大千枚岩强烈造斜地层造成钻孔弯曲问题,深层钻进遇"打滑"地层等3大难题,提出了解决此3大问题的措施方法,取得了良好的效果。
The paper briefly introduces the lithology and structure construction in Chentaigou iron mine, induces 3 aspects of difficultis of collapse, block falling, water leakage, water inflow and diameter shrinkage affected by bad geological condi-tions;hole bending caused by strongly deflecting formation of thick phyllite and slipping formation encountered in deep drilling.The measures and methods are put forward to these 3 problems with good effects.
出处
《探矿工程（岩土钻掘工程）》
2014年第10期41-44,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
复杂地层
深孔钻探
陈台沟铁矿
complex formation
deep hole drilling
Chentaigou iron mine
