Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry dock arrangement method based on immersed tunnel crossing river
The invention provides a dry dock arrangement method based on an immersed tunnel crossing a centerline, which comprises the following steps of: taking a foundation trench excavated in the middle line of a tunnel line on the upper edge of the centerline as a dry dock prefabricated pipe joint, dragging a first batch of pipe joints out of the dock through dock gate hinges arranged at two ends of the foundation trench to carry out sinking butt joint, and prefabricating subsequent batches of pipe joints after a dock gate is recovered; and the last batch of pipe joints are foundation trench inner pipe joints, sinking butt joint is carried out through ground anchor hinge dragging, final joints are poured in an underwater joint mode, and finally construction of the immersed tunnel is completed. According to the method, a dry dock does not need to be independently built, the problem that the site selection difficulty of a different-place dry dock is large is solved, long-distance floating transportation is not needed, large-range channel dredging is avoided, the pipe section floating transportation risk is reduced, the project investment is greatly reduced, and meanwhile, the underwater final joint is adopted, and the problem that the construction period of a conventional axis dry dock is long is solved.
本发明提供了一种基于沉管隧道穿越江心洲的干坞布置方法，利用在江心洲上沿的隧道线路中线开挖的基槽作为干坞预制管节，通过基槽两端设置的坞门铰拖第一批管节出坞进行沉放对接，恢复坞门后预制后续批次管节，最后一批管节为基槽内管节，通过地锚铰拖进行沉放对接，最终接头采用水下接头形式浇筑，最终完成沉管隧道的建设。本发明无需单独建设干坞，避免了异地干坞选址难度大的问题，不需长距离浮运，避免了大范围航道疏浚，降低了管段浮运风险，大大降低了工程投资，同时，采用水下最终接头，避免了常规轴线干坞施工工期长的问题。
Dry dock arrangement method based on immersed tunnel crossing river
The invention provides a dry dock arrangement method based on an immersed tunnel crossing a centerline, which comprises the following steps of: taking a foundation trench excavated in the middle line of a tunnel line on the upper edge of the centerline as a dry dock prefabricated pipe joint, dragging a first batch of pipe joints out of the dock through dock gate hinges arranged at two ends of the foundation trench to carry out sinking butt joint, and prefabricating subsequent batches of pipe joints after a dock gate is recovered; and the last batch of pipe joints are foundation trench inner pipe joints, sinking butt joint is carried out through ground anchor hinge dragging, final joints are poured in an underwater joint mode, and finally construction of the immersed tunnel is completed. According to the method, a dry dock does not need to be independently built, the problem that the site selection difficulty of a different-place dry dock is large is solved, long-distance floating transportation is not needed, large-range channel dredging is avoided, the pipe section floating transportation risk is reduced, the project investment is greatly reduced, and meanwhile, the underwater final joint is adopted, and the problem that the construction period of a conventional axis dry dock is long is solved.
本发明提供了一种基于沉管隧道穿越江心洲的干坞布置方法，利用在江心洲上沿的隧道线路中线开挖的基槽作为干坞预制管节，通过基槽两端设置的坞门铰拖第一批管节出坞进行沉放对接，恢复坞门后预制后续批次管节，最后一批管节为基槽内管节，通过地锚铰拖进行沉放对接，最终接头采用水下接头形式浇筑，最终完成沉管隧道的建设。本发明无需单独建设干坞，避免了异地干坞选址难度大的问题，不需长距离浮运，避免了大范围航道疏浚，降低了管段浮运风险，大大降低了工程投资，同时，采用水下最终接头，避免了常规轴线干坞施工工期长的问题。
Dry dock arrangement method based on immersed tunnel crossing river
一种基于沉管隧道穿越江心洲的干坞布置方法
SUN CHAO ( Autor:in ) / XING YONGHUI ( Autor:in ) / HE WEIGUO ( Autor:in ) / YE DONGMING ( Autor:in ) / FEI MANLI ( Autor:in ) / YU YONG ( Autor:in ) / ZHANG GUANGWEI ( Autor:in ) / DA WUQIANG ( Autor:in ) / YU ZUFENG ( Autor:in ) / WANG ZHIXIN ( Autor:in ) ... [mehr]
02.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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