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。
There are many cracks in subgrade in Qingshuihe experimental section after a freezing-thawing cycle.
经过一个冻融循环，青藏铁路清水河试验段出现了较多裂缝。
It is analysed that applied load capacity of reinforced concrete for freezing and thawing cycle under ocean environment.
分析了海洋环境下的钢筋混凝土在冻融破坏下的承载力。
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