Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underground excavation rectangular tunnel construction method for underneath passing existing subway station at zero distance
The invention relates to the technical field of tunnel construction, and discloses an underground excavation rectangular tunnel construction method for underneath passing through an existing subway station at zero distance. The method comprises the steps that the position of a newly-built tunnel is determined below an existing subway station; precipitation measures and stratum reinforcement are carried out on the periphery of the position of the newly-built tunnel before construction; constructing a new tunnel transition section; the newly-built tunnel penetrates through the existing subway station, and station fender posts are cut; an engineering pile located in the middle of the newly-built tunnel is chiseled away, and main ribs of the engineering pile are connected with a secondary lining structure; the engineering piles located on the two sides of the newly-built tunnel are reserved, rebars are planted in the engineering piles, and the engineering piles are connected with the second lining structure; and a lining wall is constructed on the second lining structure. The problems that under-crossing construction is large in limitation, structural stress transmission is complex, station structural settlement is obvious, and the anti-floating problem and the waterproof performance are poor are solved, and the effects that stress transmission of all the structures is simple and clear, the structures are stable, station settlement is effectively controlled, the anti-floating problem is solved, and the waterproof performance is achieved are achieved.
本申请涉及隧道施工技术领域，公开了一种零距离下穿既有地铁车站的暗挖矩形隧道施工方法。上述方法包括：在既有地铁车站下方确定新建隧道的位置；施工前对新建隧道的位置外围进行降水措施及地层加固；新建隧道过渡段施工；新建隧道下穿既有地铁车站，并切割车站围护桩；凿除位于新建隧道中部的工程桩，工程桩主筋与二衬结构相连；保留位于新建隧道两侧的工程桩，工程桩植筋并与二衬结构相连；在二衬结构上施工内衬墙。本发明专利解决了下穿施工存在较大的局限性，结构受力传递复杂、车站结构沉降明显、抗浮问题及防水性能差的问题，达到了各结构受力传递简单明确以及结构稳定、有效控制车站沉降、解决抗浮难题并起到防水性能的效果。
Underground excavation rectangular tunnel construction method for underneath passing existing subway station at zero distance
The invention relates to the technical field of tunnel construction, and discloses an underground excavation rectangular tunnel construction method for underneath passing through an existing subway station at zero distance. The method comprises the steps that the position of a newly-built tunnel is determined below an existing subway station; precipitation measures and stratum reinforcement are carried out on the periphery of the position of the newly-built tunnel before construction; constructing a new tunnel transition section; the newly-built tunnel penetrates through the existing subway station, and station fender posts are cut; an engineering pile located in the middle of the newly-built tunnel is chiseled away, and main ribs of the engineering pile are connected with a secondary lining structure; the engineering piles located on the two sides of the newly-built tunnel are reserved, rebars are planted in the engineering piles, and the engineering piles are connected with the second lining structure; and a lining wall is constructed on the second lining structure. The problems that under-crossing construction is large in limitation, structural stress transmission is complex, station structural settlement is obvious, and the anti-floating problem and the waterproof performance are poor are solved, and the effects that stress transmission of all the structures is simple and clear, the structures are stable, station settlement is effectively controlled, the anti-floating problem is solved, and the waterproof performance is achieved are achieved.
本申请涉及隧道施工技术领域，公开了一种零距离下穿既有地铁车站的暗挖矩形隧道施工方法。上述方法包括：在既有地铁车站下方确定新建隧道的位置；施工前对新建隧道的位置外围进行降水措施及地层加固；新建隧道过渡段施工；新建隧道下穿既有地铁车站，并切割车站围护桩；凿除位于新建隧道中部的工程桩，工程桩主筋与二衬结构相连；保留位于新建隧道两侧的工程桩，工程桩植筋并与二衬结构相连；在二衬结构上施工内衬墙。本发明专利解决了下穿施工存在较大的局限性，结构受力传递复杂、车站结构沉降明显、抗浮问题及防水性能差的问题，达到了各结构受力传递简单明确以及结构稳定、有效控制车站沉降、解决抗浮难题并起到防水性能的效果。
Underground excavation rectangular tunnel construction method for underneath passing existing subway station at zero distance
一种零距离下穿既有地铁车站的暗挖矩形隧道施工方法
CHEN ZHIJIAN (Autor:in) / LONG XI'AN (Autor:in) / CHEN XIANGYU (Autor:in) / ZHANG XINGHAI (Autor:in) / PAN QIAN (Autor:in) / YU QINGPING (Autor:in) / HUANG ZHIGUANG (Autor:in) / DENG PENGFEI (Autor:in) / YOU JIE (Autor:in) / CHEN HAO (Autor:in)
04.08.2023
Patent
Elektronische Ressource
Chinesisch
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