Practice testifies that practice of this kind of reverse well track type project is feasible for the drilling and development of short displacement, the shallow vertical depth horizontal well.

实践证明，对于短位移、浅垂深的水平井钻进开发，实施这种“反勾”型方案是切实可行的。

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With increase of thaw depth pavement displacement markedly increased.

随着融沉深度增加，路面位移显著增加。

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The maximum horizontal displacement occurs below the excavated surface with the depth of 0.7~0.8 times of the pit depth.

冻土帷幕最大水平位移位置均出现在开挖面以下，一般出现在帷幕全深的0.7-0.8倍深度范围内；

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