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。
2
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。
3
The maximum horizontal displacement occurs below the excavated surface with the depth of 0.7~0.8 times of the pit depth.