摘要
酉水大桥主桥为(80 m+145 m+80 m)3跨大跨径预应力混凝土连续梁桥,其中5号主墩位于酉水河航道中,施工前依据其施工难点选择双壁钢围堰作承台施工挡水结构,简述双壁钢围堰构造,介绍双壁钢围堰施工工艺中拼装、下放入水、定位着床、吸泥下沉和水下混凝土封底等工序,并就钢围堰施工中出现问题的处理方法进行叙述,为今后同类施工提供参考。
Youshui River Bridge is a （80 m ＋45 m ＋ 80 m） 3 span prestressed concrete continuous beam bridge,the main pier No.5 is located in the Youshui river channel,before construction according to the construction difficulty selection of double wall steel cofferdam for construction of pile caps water retaining structure,the double wall steel cofferdam construction,the double wall steel cofferdam construction technology for assembling,placed under water,positioning implantation,sucking mud subsidence and underwater concrete bottom sealing and other processes,and states the steel cofferdam construction in process problems,provide reference for future similar construction.
出处
《公路工程》
北大核心
2013年第5期193-198,共6页
Highway Engineering
关键词
酉水大桥
连续梁桥
双壁钢围堰
体系转换
施工工艺
吸泥下沉
河床防护
施工技术
Youshui bridge double wall steel cofferdam system conversion construction process of suction protection construction technology of riverbed sinking
