快速分区围堰法装配式改造箱涵便道桥施工

Prefabricated Reconstruction of Box Culvert Shortcut Bridge by Rapid Partition Cofferdam Method

在不能停航的河流上,采用在机场分区围堰的方法来快速重建和扩建满足交通运输和防汛需求的装配式简支梁桥。同时,对原有的管线进行搬迁、移位和保护。新建造的具有较高车辆荷载通行能力的桥梁需要在桥台后进行地基处理和保护。

On the river where shipping service cannot be suspended,partitioned cofferdam method is used to rapidly reconstruct and expand the simply-supported prefabricated beam bridge to meet the needs of transportation and flood control.At the same time,the original pipeline will be relocated,displaced and protected.Newly constructed bridges with higher vehicle load capacity require foundation treatment and protection behind the abutment.