已建码头面板现浇层裂缝问题工程对策研究

Engineering Countermeasures Against the Cracks in Cast-in-Situ Layers of Wharf Face Slabs

码头面板现浇层的裂缝并非浅表裂缝,大多穿透了现浇层,并沿预制面板与现浇板缝的界面向下延伸。该裂缝影响码头结构构件的耐久性,对码头上部结构的刚度有一定削弱。提出用超细水泥灌浆修补面板现浇层裂缝的工程对策。

The cracks in cast-in-situ layers of wharf face slabs are not shallow. They mostly penetrate through the cast-in-situ layers and extend down along the interfaces between precast slab and cast-in-situ block. The cracks will affect the durability of wharf structural members and weaken the stiffness of wharf upper structure. An engineering countermeasure using the superfine cement grouting to patch up the cracks is advanced.