利用ANSYS软件建立数学模型，分析不同地压、不同冻结壁厚度、不同冻结壁平均温度、不同开挖段高与冻结壁变形之间的关系。通过研究发现,井帮位移随冻结壁平均温度的降低、冻结壁厚度的增大而减小，随施工段高增大、地层地压值的增大而增大，且地压值的变化对冻结壁的变形影响最为显著。据此提出了深表土冻结壁应按变形条件进行设计，且施工段高是影响冻结壁稳定性的极为重要的参数，在施工中应严格控制。研究提出当冻结壁厚度为10 m左右，平均温度达到－20 ℃时，采取降低冻结壁平均温度的方式比增加冻结壁厚度能更加有效地提高冻结壁的

This paper studies the deformation law of frozen wall with different ground pressures, frozen wall thicknesses, average temperatures, excavation heights and the relationship among all influencing factors based on the mathematical model established by ANSYS software. According to the results, sidewall displacement decreases with average temperature of frozen wall lowering and frozen wall thickness increasing, and increases with excavation height and ground pressure increasing. Furthermore, the influence of ground pressure change is extraordinarily remarkable. The author puts forward that frozen wall through thick overburden should be designed according to the condition of deformation, and excavation height should be strictly controlled during construction as it is an extremely important parameter for stability of frozen wall as well as a major technical index of frozen wall safety. Compared with increasing the thickness of frozen wall, lowering average temperature is more effective and energy-saving to promote stability of frozen wall when frozen wall is about 10 m thick and average temperature is －20 ℃. The deformation law concluded in this study has important reference value for design, and safe, effective and power-saving construction of freezing projects through thick overburden.