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A platform for research: civil engineering, architecture and urbanism
Over-hundred-meter deepwater bridge gravity type foundation structure and construction method
The invention relates to the technical field of deepwater bridge foundation construction, in particular to a gravity type foundation structure of a deepwater bridge exceeding 100 meters and a construction method. The foundation structure comprises a base, supporting columns and a bridge bearing platform. The base comprises an enclosure structure formed by connecting a plurality of box girders with a plurality of caissons. The plurality of hollow supporting columns are gradually close to the central axis of the base from bottom to top; the bridge bearing platform is arranged at the tops of the multiple supporting columns. The construction method comprises the following steps: S1, prefabricating a caisson and a box girder in a dock and connecting the caisson and the box girder to form a base integral structure; s2, the base is transported to a target area in a floating mode and fixed through an anchoring system; s3, a supporting column is formed on the base through pouring; s4, filling the supporting columns with filler to enable the built foundation to sink and implant; and S5, the same bridge bearing platform is built at the top ends of the multiple supporting columns. According to the bridge foundation and the construction method, the construction requirement of a strait-crossing bridge with the water depth exceeding 300 m can be met, and the problem that the environment for building the bridge foundation in deep water exceeding 100 m is severe is solved.
本发明涉及深水桥梁基础施工技术领域，具体指一种超百米深水桥梁重力式基础结构及施工方法。该基础结构包括底座、支撑柱和桥梁承台，所述底座包括由多个箱梁连接多个沉箱形成的围护结构；多个中空的支撑柱由下向上逐渐向底座的中心轴线靠近；桥梁承台设置在多个支撑柱的顶部。所述施工方法包括以下步骤：S1、在船坞内预制沉箱和箱梁并连接形成底座整体结构；S2、将底座浮运至目标区域，采用锚泊系统固定；S3、在底座上浇筑形成支撑柱；S4、向支撑柱中灌注填料使已建基础下沉着床；S5、在多个支撑柱顶端建设同一桥梁承台。本发明的桥梁基础及施工方法，可满足超300m水深跨海峡桥梁的建造需求，解决超百米深水建桥梁基础环境恶劣的难题。
Over-hundred-meter deepwater bridge gravity type foundation structure and construction method
The invention relates to the technical field of deepwater bridge foundation construction, in particular to a gravity type foundation structure of a deepwater bridge exceeding 100 meters and a construction method. The foundation structure comprises a base, supporting columns and a bridge bearing platform. The base comprises an enclosure structure formed by connecting a plurality of box girders with a plurality of caissons. The plurality of hollow supporting columns are gradually close to the central axis of the base from bottom to top; the bridge bearing platform is arranged at the tops of the multiple supporting columns. The construction method comprises the following steps: S1, prefabricating a caisson and a box girder in a dock and connecting the caisson and the box girder to form a base integral structure; s2, the base is transported to a target area in a floating mode and fixed through an anchoring system; s3, a supporting column is formed on the base through pouring; s4, filling the supporting columns with filler to enable the built foundation to sink and implant; and S5, the same bridge bearing platform is built at the top ends of the multiple supporting columns. According to the bridge foundation and the construction method, the construction requirement of a strait-crossing bridge with the water depth exceeding 300 m can be met, and the problem that the environment for building the bridge foundation in deep water exceeding 100 m is severe is solved.
本发明涉及深水桥梁基础施工技术领域，具体指一种超百米深水桥梁重力式基础结构及施工方法。该基础结构包括底座、支撑柱和桥梁承台，所述底座包括由多个箱梁连接多个沉箱形成的围护结构；多个中空的支撑柱由下向上逐渐向底座的中心轴线靠近；桥梁承台设置在多个支撑柱的顶部。所述施工方法包括以下步骤：S1、在船坞内预制沉箱和箱梁并连接形成底座整体结构；S2、将底座浮运至目标区域，采用锚泊系统固定；S3、在底座上浇筑形成支撑柱；S4、向支撑柱中灌注填料使已建基础下沉着床；S5、在多个支撑柱顶端建设同一桥梁承台。本发明的桥梁基础及施工方法，可满足超300m水深跨海峡桥梁的建造需求，解决超百米深水建桥梁基础环境恶劣的难题。
Over-hundred-meter deepwater bridge gravity type foundation structure and construction method
一种超百米深水桥梁重力式基础结构及施工方法
ZHAO DONGLIANG (author) / PAN GUILIN (author) / FENG XIANDAO (author) / QIU ZHENGZHONG (author) / LIN HONGXING (author) / HAN PENGPENG (author) / HUANG RUIYI (author) / ZHANG LEI (author) / LIU CONGCONG (author) / SHEN LILONG (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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