赣江深水大型双壁钢围堰下水平台设计研究

Study on the design of large-scale deep-water double-wall steel cofferdam launching platform of Gan River

根据赣江特大桥工程的水文地质条件,选取了钢围堰下水方案,阐述了下水平台的设计与安全性验算方法,并从下水平台搭设、底节拼装、钢围堰出水三方面,介绍了钢围堰下水施工技术,达到了节约成本、缩短工期的效果。

According to hydrological conditions of extra-large bridge engineering of Gan river,the paper selects steel cofferdam launching scheme,describes the launching platform design and safety checking methods,and introduces steel cofferdam launching construction technologies from three aspects of launching platform erection,bottom spelling and steel cofferdam effluent discharging,with a view to achieve the effect of saving cost and shortening construction duration.