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根据理论计算分析 ,水泥混凝土路面胀缝的破坏主要是胀缝的密封失效后 ,嵌入的硬物阻碍了混凝土板的膨胀变形而产生较大的温度应力 ,并在汽车荷载反复作用和结构缺陷存在等的综合因素作用下而导致破坏。研制的预制胀缝密封装置能有效防止硬物嵌入和改善接缝两边混凝土板角缘的受力状态
According to the theoretical calculation and analysis, the main damage of cement concrete pavement expansion joints is the seal failure of expansion joints. The embedded hard objects hinder the expansion and deformation of concrete slab to produce large temperature stress. In the presence of repeated car load and structural defects Under the combined factors such as the role of destruction. The prefabricated expansion joint sealing device developed can effectively prevent the hard objects from being embedded and improve the stress state of the concrete slab edges on both sides of the joint