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天东站水平钻孔上偏的主要原因
引用本文:杨理源. 天东站水平钻孔上偏的主要原因[J]. 南方国土资源, 1999, 12(2): 23-26
作者姓名:杨理源
作者单位:广西环境地质研究所,桂林市,541004
摘    要:
针对地铁天安门东站的水平钻孔上偏的现象,分析目前比较容易引起水平钻孔产生上偏的三种原因。

关 键 词:水平钻孔  上偏原因
修稿时间:1998-03-02

THE UPWARD-DEFLECTIVE REASON OF HORIZONTAL DRILL HOLE IN THE EAST STATION OF TIANANMEN
Yang Li-yuan. THE UPWARD-DEFLECTIVE REASON OF HORIZONTAL DRILL HOLE IN THE EAST STATION OF TIANANMEN[J]. land and resources of southern china, 1999, 12(2): 23-26
Authors:Yang Li-yuan
Abstract:
After having pointed out the phenomenon that the horizontal drill hole in the East Station of Tiananmen was upward-deflection, the author analyzed the three reasons that were easier to course horizontal drill hole be upward-deflective
Keywords:horizontal drill hole   upward-deflective reason
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