| 张花高速酉水大桥5号主墩深水双壁钢围堰施工技术 |
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| 引用本文： | 杨永伟,戴桂华,徐阳,王峰.张花高速酉水大桥5号主墩深水双壁钢围堰施工技术[J].中南公路工程,2013(5):193-198. |
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| 作者姓名： | 杨永伟 戴桂华 徐阳 王峰 |
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| 作者单位： | [1]中铁二十三局有限公司张花高速第二十五合同段,湖南保靖416500 [2]湖南省张花高速公路建设开发有限公司,湖南张家界427000 |
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| 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.
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| 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 |
Construction Technology of Double Wall Steel Cofferdam Zhang Hua High-speed Youshui Bridge Main Pier No.5 |
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| YANG Yongwei;DAI Guihua;XU Yang;WANG Feng.Construction Technology of Double Wall Steel Cofferdam Zhang Hua High-speed Youshui Bridge Main Pier No.5[J].Central South Highway Engineering,2013(5):193-198. |
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| Authors: | YANG Yongwei;DAI Guihua;XU Yang;WANG Feng |
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| Institution: | YANG Yongwei;DAI Guihua;XU Yang;WANG Feng(twenty-three Bureau of China Railway Co.Ltd.Zhang Hua high speed twenty-fifth contract section of Hunan, Baojing 416500, China;Hunan Province Zhang Hua highway construction and Development Co.Ltd., Zhangjiajie Hunan 427000, China) |
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| Abstract: | 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. |
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| Keywords: | Youshui bridge double wall steel cofferdam system conversion construction process of suction protection construction technology of riverbed sinking |
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