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A platform for research: civil engineering, architecture and urbanism
Construction method of ultra-deep water pile well combined type bridge foundation structure
The invention discloses a construction method of an ultra-deep water pile well combined type bridge foundation structure. The construction method comprises the following steps that S1, open caisson assembling units are prefabricated; s2, after a first section of open caisson is formed, the first section of open caisson slides into water and is transported to an offshore assembled wharf in a floating mode; s3, the rest open caisson splicing units are sequentially spliced with the first open caisson section to form an open caisson; s4, a pilot positioning pile is constructed, and the open caisson is transported to the position near the designed position in a floating mode; s5, the open caisson is hoisted and lowered to an implantation bed; s6, underwater concrete is poured into the well wall of the open caisson; s7, bottom sealing concrete is poured into the open caisson; s8, main body pile holes are constructed in the foundation beds at the bottoms of the long cylinders; s9, a reinforcement cage is placed in each main body pile hole, concrete is poured, the corresponding long cylinders are filled with the concrete, and each main body pile is formed; and S10, the construction platform is dismantled in a blocking mode, and the top plate of the open caisson is correspondingly constructed in a following mode one by one. The bridge foundation structure is high in overall performance and high in construction efficiency.
本发明公开了一种超深水桩井组合式桥梁基础结构施工方法，包括以下步骤：S1、预制沉井拼装单元；S2、形成首节沉井后，将所述首节沉井滑移入水，并浮运至近海拼装码头；S3、将其余所述沉井拼装单元依次与所述首节沉井组拼形成沉井；S4、施工先导定位桩，将所述沉井浮运至设计位置附近；S5、吊装下放所述沉井至着床；S6、向所述沉井的井壁内浇筑水下砼；S7、向所述沉井的内部浇筑封底砼；S8、在各所述长筒底部的基床上施工各主体桩桩孔；S9、向各主体桩桩孔内下放钢筋笼并浇筑混凝土，混凝土填满对应的所述长筒，形成各主体桩；S10、分块拆除所述施工平台，对应逐块紧跟施工所述沉井的顶板。本发明的桥梁基础结构的整体性能强，施工效率高。
Construction method of ultra-deep water pile well combined type bridge foundation structure
The invention discloses a construction method of an ultra-deep water pile well combined type bridge foundation structure. The construction method comprises the following steps that S1, open caisson assembling units are prefabricated; s2, after a first section of open caisson is formed, the first section of open caisson slides into water and is transported to an offshore assembled wharf in a floating mode; s3, the rest open caisson splicing units are sequentially spliced with the first open caisson section to form an open caisson; s4, a pilot positioning pile is constructed, and the open caisson is transported to the position near the designed position in a floating mode; s5, the open caisson is hoisted and lowered to an implantation bed; s6, underwater concrete is poured into the well wall of the open caisson; s7, bottom sealing concrete is poured into the open caisson; s8, main body pile holes are constructed in the foundation beds at the bottoms of the long cylinders; s9, a reinforcement cage is placed in each main body pile hole, concrete is poured, the corresponding long cylinders are filled with the concrete, and each main body pile is formed; and S10, the construction platform is dismantled in a blocking mode, and the top plate of the open caisson is correspondingly constructed in a following mode one by one. The bridge foundation structure is high in overall performance and high in construction efficiency.
本发明公开了一种超深水桩井组合式桥梁基础结构施工方法，包括以下步骤：S1、预制沉井拼装单元；S2、形成首节沉井后，将所述首节沉井滑移入水，并浮运至近海拼装码头；S3、将其余所述沉井拼装单元依次与所述首节沉井组拼形成沉井；S4、施工先导定位桩，将所述沉井浮运至设计位置附近；S5、吊装下放所述沉井至着床；S6、向所述沉井的井壁内浇筑水下砼；S7、向所述沉井的内部浇筑封底砼；S8、在各所述长筒底部的基床上施工各主体桩桩孔；S9、向各主体桩桩孔内下放钢筋笼并浇筑混凝土，混凝土填满对应的所述长筒，形成各主体桩；S10、分块拆除所述施工平台，对应逐块紧跟施工所述沉井的顶板。本发明的桥梁基础结构的整体性能强，施工效率高。
Construction method of ultra-deep water pile well combined type bridge foundation structure
一种超深水桩井组合式桥梁基础结构施工方法
HU YIXIN (author) / ZHOU SHU (author) / WU XINGFA (author) / SUN RENSONG (author) / XUE CHAO (author) / SHI SHAOZHI (author) / LIN XIAOYU (author)
2023-07-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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