研究了影响冻结井预制弧板井壁变形特性的接头刚度。
Studied the joint rigidity which affects deformation characteristics of prefabricated arc board of freezing well.
防止冻结管断裂的措施为选用合适的冻结管材料，增大冻结管壁厚度，减小冻结管直径，提高冻结管接头质量，控制掘进段高。
The measures to prevent frozen pipes from rupturing are choosing proper materials, increasing the wall thickness, decreasing the diameter, improving the joint quality of frozen pip.
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