Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cover excavation top beam and temporary pile column structure for pile foundation underpinning and construction method
The invention discloses a cover excavation top beam and temporary pile column structure for pile foundation underpinning and a construction method.The cover excavation top beam and temporary pile column structure comprises a transverse supporting beam, a longitudinal supporting beam, a temporary pile column and an enclosure structure which are arranged around an existing pile foundation bearing platform structure, the existing pile foundation bearing platform structure is connected with the transverse supporting beam and the longitudinal supporting beam, and the two ends of the transverse supporting beam are connected with the enclosure structure; the two ends of the longitudinal joists are connected with the transverse joists, and the temporary piles are arranged between the existing pile foundation bearing platform structure and the enclosure structure. The invention further provides a construction method aiming at the structure, the design concept of'covering and excavation of the top beam and temporary pile column structural system underpinning of existing ground entrance and exit pile foundations' is adopted, and top plate soil covering, traffic recovery and pipeline return can be rapidly achieved. Meanwhile, after the newly-built cover-excavation underground structure system is closed, the temporary piles are cut off, a large-span underground non-column space is formed, the cover-excavation underground structure system bears the vertical load of the existing ground entrance and exit in the using stage, and safe operation of the existing subway in the pile foundation underpinning period can be guaranteed.
本发明公开了一种用于桩基托换的盖挖顶梁及临时桩柱结构及施工方法，包括围绕既有桩基承台结构设置的横托梁、纵托梁、临时桩柱以及围护结构，既有桩基承台结构与横托梁和纵托梁相连接，横托梁的两端与围护结构相连接，纵托梁的两端与横托梁相连接，临时桩柱设置于既有桩基承台结构与围护结构之间。进一步本发明还提出了针对该结构的施工方法，采用“盖挖顶梁和临时桩柱结构体系托换既有地面出入口桩基”的设计理念，可快速实现顶板覆土、交通恢复、管线回迁。同时，待新建盖挖地下结构体系封闭后割除临时桩柱，形成了大跨度地下无柱空间，实现使用阶段盖挖地下结构体系承担既有地面出入口竖向荷载，可保证既有地铁在桩基托换期间的安全运营。
Cover excavation top beam and temporary pile column structure for pile foundation underpinning and construction method
The invention discloses a cover excavation top beam and temporary pile column structure for pile foundation underpinning and a construction method.The cover excavation top beam and temporary pile column structure comprises a transverse supporting beam, a longitudinal supporting beam, a temporary pile column and an enclosure structure which are arranged around an existing pile foundation bearing platform structure, the existing pile foundation bearing platform structure is connected with the transverse supporting beam and the longitudinal supporting beam, and the two ends of the transverse supporting beam are connected with the enclosure structure; the two ends of the longitudinal joists are connected with the transverse joists, and the temporary piles are arranged between the existing pile foundation bearing platform structure and the enclosure structure. The invention further provides a construction method aiming at the structure, the design concept of'covering and excavation of the top beam and temporary pile column structural system underpinning of existing ground entrance and exit pile foundations' is adopted, and top plate soil covering, traffic recovery and pipeline return can be rapidly achieved. Meanwhile, after the newly-built cover-excavation underground structure system is closed, the temporary piles are cut off, a large-span underground non-column space is formed, the cover-excavation underground structure system bears the vertical load of the existing ground entrance and exit in the using stage, and safe operation of the existing subway in the pile foundation underpinning period can be guaranteed.
本发明公开了一种用于桩基托换的盖挖顶梁及临时桩柱结构及施工方法，包括围绕既有桩基承台结构设置的横托梁、纵托梁、临时桩柱以及围护结构，既有桩基承台结构与横托梁和纵托梁相连接，横托梁的两端与围护结构相连接，纵托梁的两端与横托梁相连接，临时桩柱设置于既有桩基承台结构与围护结构之间。进一步本发明还提出了针对该结构的施工方法，采用“盖挖顶梁和临时桩柱结构体系托换既有地面出入口桩基”的设计理念，可快速实现顶板覆土、交通恢复、管线回迁。同时，待新建盖挖地下结构体系封闭后割除临时桩柱，形成了大跨度地下无柱空间，实现使用阶段盖挖地下结构体系承担既有地面出入口竖向荷载，可保证既有地铁在桩基托换期间的安全运营。
Cover excavation top beam and temporary pile column structure for pile foundation underpinning and construction method
一种用于桩基托换的盖挖顶梁及临时桩柱结构及施工方法
FEI RUIZHEN (Autor:in) / ZHANG JIQING (Autor:in) / ZHANG HAOLIANG (Autor:in) / JING JIALIANG (Autor:in) / ZHANG CHUNLEI (Autor:in) / LI AIDONG (Autor:in) / GUO XIANZHAO (Autor:in) / ZENG JIALIANG (Autor:in) / HOU JINGYU (Autor:in) / JIN XIN (Autor:in)
20.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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