【摘要】 湘江某大桥桥墩及沉井基础维修加固施工中 ,采用了钢管打入江中作围栅 ,麻袋内装干拌混凝土作围堰 ,大型平板驳船作混凝土搅拌操作平台 ,水下混凝土护基通过导管灌注。在寒冷的冬期施工 ,工期仅为15d ,加固效果显著更多还原

【Abstract】 In pier footing maintenance and strengthening works of a bridge in Xiangjiang river sinking well technique was adopted.In the construction steel pipes were driven into the bottom as fence;gunny-bag contained dry-mixed concrete as coffer;huge barge was used as platform for concrete mixing.Underwater protective concrete footing was poured through pipes.Remarkable effect was achieved while duration of the works only lasted 15 days.更多还原