The damage propagation of rock under the freezing and thawing condition is a new direction of rock damage mechanics.

岩石冻融过程的细观损伤研究是近年来冻融损伤研究的一个新方向。

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Based on the theory of damage mechanics, fracture mechanics and elastic mechanics, the formation and expanding of control fissure were researched under the condition of cycle of freezing and thawing.

基于损伤力学、断裂力学、弹性力学等理论，对冻融循环条件下主控结构面的产生和扩展进行了研究。

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The factors that can influence the soil seasonal free zing and thawing include snow -cover, vegetation, the soil component and contain water, the condition of earth, landform and so on.

土季节冻结和融化的影响因素主要有雪盖、植被、土壤成分及含水量、地表状况和地形等。

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