泄压孔的设置可以有效减小冻胀压力，并有利于冻土帷幕内土体的开挖；
Pressure relief holes give a big help to decrease the frost-heaving pressure and excavate soil enclosed by frozen curtain.
在施工过程中，通过温度场监测分析掌握冻土帷幕的安全状态，是风险控制的重要手段之一。
During the construction process, keeping abreast of the safety status of the frozen soil curtain by temperature field monitoring and analyzing is one of the important measures for risk control.
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；
The maximum horizontal displacement occurs below the excavated surface with the depth of 0.7~0.8 times of the pit depth.
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