| 天东站水平钻孔上偏的主要原因 |
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| 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. |
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| 作者姓名： | 杨理源 |
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| 作者单位： | 广西环境地质研究所,桂林市,541004 |
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| 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。
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| 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 |
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| Authors: | Yang Li-yuan |
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| 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 |
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| Keywords: | horizontal drill hole upward-deflective reason |
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