The maximum horizontal displacement occurs below the excavated surface with the depth of 0.7~0.8 times of the pitdepth.
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;
2
Relation between the dent depth and the impact energy indicates that the variation of pitdepth is consistent with the energy, and detailed analysis of damage distribution and size was conducted.