孔内爆破起拔井壁管工艺THE TECHNOLOGY OF EXPLOSION IN DRILL HOLE TO DRAW OUT CASING PIPE
刘振杰
Liu Zhenjie (No.119 Prospecting Team of China National Administration of Coal Geology);
摘要(Abstract):
采用孔内爆破法起拔井壁管 ,是一种快速简便有效的方法
Explosion in drill hole is widely used.Using this method to draw out casing pipe is a high speed and simply effective way.
关键词(KeyWords):
孔内爆破;起拔井壁管;工艺
explosion in drill hole;draw out casing pipe;technology
基金项目(Foundation):
作者(Authors):
刘振杰
Liu Zhenjie (No.119 Prospecting Team of China National Administration of Coal Geology);
参考文献(References):
文章评论(Comment):
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