| 位于水陆交界处的锁口钢管桩围堰设计与施工 |
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| 引用本文： | 蔡晓男,张文渊.位于水陆交界处的锁口钢管桩围堰设计与施工[J].港工技术,2020(2):65-70. |
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| 作者姓名： | 蔡晓男 张文渊 |
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| 作者单位： | 中交三航局第二工程有限公司 |
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| 摘 要： | 湘江杨梅洲大桥22#主墩位于水陆交界处,为满足桩基、承台施工需要,采用直径40m的锁口钢管桩围堰作为围护结构。根据土质参数,论文采用理正岩土和MidasCivil分析钢管桩围堰与周边土体的相互作用,验算结构设计合理性。在此基础上,重点论述锁口钢管桩沉桩的改进工艺。结果表明,新工艺可缩短工期75天,节约成本104.9万元,研究成果对类似工程围堰设计与施工提供了参考与借鉴。
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| 关 键 词： | 桥梁工程 钢管桩围堰 设计施工 Midas Civil |
Design and Construction of Locked Steel-pipe-pile Cofferdam at Land-waterBoundary |
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| Cai Xiaonan,Zhang Wenyuan.Design and Construction of Locked Steel-pipe-pile Cofferdam at Land-waterBoundary[J].Port Engineering Technology,2020(2):65-70. |
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| Authors: | Cai Xiaonan Zhang Wenyuan |
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| Institution: | (No.2 Engineering Co.,Ltd.of CCCC Third Harbor Engineering Co.,Ltd.,Shanghai 200122,China) |
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| Abstract: | Pier No.22 of Yangmeizhou Bridge across Xiangjiang River is located at the land-water boundary.In order to satisfy the construction requirements of pile foundation and platform,the locked steel-pipe-pile cofferdam with the diameter of 40m applies as a protective structure.Based on the soil parameters,Lizheng/Geo and Midas Civil are used to analyze the interaction between the cofferdam and the surrounding soil,and to check the structural safety.In addition,the improved technology for driving locked steel-pipe-pile is discussed as a key point.75 construction days and the cost of 1049 thousands RMB can be reduced by using the new technology,the research results can serve as a reference for the design and construction of similar projects. |
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| Keywords: | bridge engineering steel-pipe-pile cofferdam design and construction Midas Civil |
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