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A platform for research: civil engineering, architecture and urbanism
Composite cofferdam construction method
The invention discloses a composite cofferdam construction method. The method includes the construction steps of survey and setting-out, erecting of a construction steel platform, construction of cast-in-situ bored piles, longitudinal beam casting in place, steel fender installation, high-pressure jet grouting pile construction, transverse beam casting in place, bagged loess filling, prefabricatedpanel installation, surface layer casting in place and the like. During construction of a composite cofferdam, steel fenders are installed on the inner side walls of two rows of cast-in-situ piles, and the portion between the two steel fenders is filled with high-pressure jet grouting piles and bagged loess, so that the bearing capacity of the cofferdam on lateral water pressure is improved; andmeanwhile, the cofferdam has high anti-seepage capability, problems which cannot be solved by a conventional monotonous water retaining cofferdam are solved, the cofferdam can adapt to complex hydrogeological environments, and the construction method can effectively ensure the construction quality and safety of the cofferdam.
本发明公开了一种复合围堰施工方法，包括测量放样、搭设施工钢平台、钻孔灌注桩施工、现浇纵梁、安装挡泥钢板、高压旋喷桩施工、现浇横梁、填充袋装黄土、安装预制面板、现浇面层这些施工步骤，施工时，该复合围堰采用在两排灌注桩的内侧壁上设置挡泥钢板，且在两挡泥钢板之间采用高压旋喷桩和袋装黄土填充的方式，提高了围堰对侧向水压力的阻挡承受能力，同时，使得该围堰具备较强的抗渗能力，解决了常规单一的挡水围堰所不能解决的问题，使得围堰能适应复杂水文地质环境，该施工方法能有效确保围堰的施工质量和安全。
Composite cofferdam construction method
The invention discloses a composite cofferdam construction method. The method includes the construction steps of survey and setting-out, erecting of a construction steel platform, construction of cast-in-situ bored piles, longitudinal beam casting in place, steel fender installation, high-pressure jet grouting pile construction, transverse beam casting in place, bagged loess filling, prefabricatedpanel installation, surface layer casting in place and the like. During construction of a composite cofferdam, steel fenders are installed on the inner side walls of two rows of cast-in-situ piles, and the portion between the two steel fenders is filled with high-pressure jet grouting piles and bagged loess, so that the bearing capacity of the cofferdam on lateral water pressure is improved; andmeanwhile, the cofferdam has high anti-seepage capability, problems which cannot be solved by a conventional monotonous water retaining cofferdam are solved, the cofferdam can adapt to complex hydrogeological environments, and the construction method can effectively ensure the construction quality and safety of the cofferdam.
本发明公开了一种复合围堰施工方法，包括测量放样、搭设施工钢平台、钻孔灌注桩施工、现浇纵梁、安装挡泥钢板、高压旋喷桩施工、现浇横梁、填充袋装黄土、安装预制面板、现浇面层这些施工步骤，施工时，该复合围堰采用在两排灌注桩的内侧壁上设置挡泥钢板，且在两挡泥钢板之间采用高压旋喷桩和袋装黄土填充的方式，提高了围堰对侧向水压力的阻挡承受能力，同时，使得该围堰具备较强的抗渗能力，解决了常规单一的挡水围堰所不能解决的问题，使得围堰能适应复杂水文地质环境，该施工方法能有效确保围堰的施工质量和安全。
Composite cofferdam construction method
一种复合围堰施工方法
XIONG WEIGEN (author) / WANG SHENGLI (author) / SUN JIAN (author) / LOU JIANFENG (author) / SUN CHAO (author) / ZHANG TAISHAN (author) / XU WEI (author) / HUANG JIANYUN (author) / LI PENGZHEN (author) / HU PENG (author)
2020-10-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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