| 张花高速酉水大桥深水桩基施工技术 |
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| 引用本文： | 杨永伟,戴桂华,徐阳,王峰.张花高速酉水大桥深水桩基施工技术[J].中南公路工程,2013(5):199-203,213. |
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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＋80m）3跨大跨径预应力混凝土连续梁桥,其中5号、6号主墩位于酉水河航道中,主墩基础入水深度达35 m,采用10根φ3.0m钻孔灌注桩,施工前依据其施工难点选择钢管桩平台做为钻孔平台,在桩基施工中采用帷幕注浆、多级钢护筒跟进等方法有效地解决了由于地质复杂造成的塌孔、穿孔、漏浆、埋锤、平台不稳、护筒倾斜等问题.为今后同类施工提供参考.
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| 关 键 词： | 连续梁桥 钻孔平台 灌注桩 帷幕注浆 塌孔 穿孔 漏浆 |
Construction Technology of Deepwater Pile Zhang Hua High-speed Youshui River Bridge |
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| YANG Yongwei;DAI Guihua;XU Yang;WANG Feng.Construction Technology of Deepwater Pile Zhang Hua High-speed Youshui River Bridge[J].Central South Highway Engineering,2013(5):199-203,213. |
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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(China Railway twenty-three Bureau Co Ltd Zhang Hua high speed twenty-fifth contract section, Baojing, Hunan 416500, China;Hunan Zhang-hua Express Highway Construction Development Company LTD, Zhangjiajie, Hunan 417600, China) |
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| Abstract: | Youshui River Bridge is a （80 m ＋ 145 m ＋ 80 m） 3 span prestressed concrete continuous beam bridge,the No.5,No.6 main piers located in the Youshui river channel,main pier foundation in water depth of 35 meters,with 10 3.0 m diameter bored pile,construction on the basis of the construction the difficulties of steel pipe pile platform as the drilling platform,the curtain grouting,multistage steel casings and other methods can effectively solve the problem of hole collapse,due to complex geological result in perforation,slurry leakage,buried hammer,platform instability,tube tilt in pile foundation construction.For the similar construction of reference. |
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| Keywords: | continuous beam bridge drilling platform pile curtain grouting hole collapse hole leakage |
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