A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Subway station main body structure construction method based on cover-excavation top-down construction method
The invention belongs to the technical field of subway station main body structure construction, and particularly relates to a subway station main body structure construction method based on a cover-excavation reverse construction method. Comprising the following steps of building envelope construction, excavation of earthwork above a cover plate, construction of a cushion layer, laying of a formwork, erection of reinforcing steel bars, pouring of cover plate concrete, excavation of first negative layer earthwork, construction of a middle plate support cushion layer, binding of first negative layer side wall reinforcing steel bars, binding of middle plate reinforcing steel bars, pouring of middle plate concrete, excavation of second negative layer earthwork, pouring of a bottom plate cushion layer and binding of second negative layer reinforcing steel bars. Bottom plate reinforcing steel bars are bound, bottom plate concrete is poured, and negative second-layer side wall concrete is poured. According to the scheme, under the condition that stress check calculation of the foundation pit support structure is allowed, earthwork with a certain height is excavated below the station cover excavation top-down structure plate in advance, a support erecting space is formed, and part of cover excavation earthwork is indirectly changed into open excavation earthwork; and an operation space is provided for advanced earth cutting equipment such as a long-arm excavator, a hydraulic vertical telescopic arm excavator and the like to quickly excavate earth under the plate.
本发明属于地铁车站主体结构施工技术领域，具体涉及一种基于盖挖逆作法的地铁车站主体结构施工方法，包括以下步骤：围护结构施工、开挖盖板上方土方、施作垫层、铺设模板、架设钢筋、浇筑盖板混凝土、开挖负一层土方、施作中板支架垫层、绑扎负一层侧墙钢筋、绑扎中板钢筋、浇筑中板混凝土、开挖负二层土方、浇筑底板垫层、绑扎负二层钢筋、绑扎底板钢筋、浇筑底板混凝土、负二层侧墙混凝土浇筑等。本方案在基坑围护结构受力检算允许的条件下,车站盖挖逆作结构板下预先开挖一定高度的土方,形成支架搭设空间,间接将部分盖挖土方变为明挖土方，提供了长臂挖掘机、液压垂直伸缩臂挖掘机等先进挖土设备快速开挖板下土方的作业空间。
Subway station main body structure construction method based on cover-excavation top-down construction method
The invention belongs to the technical field of subway station main body structure construction, and particularly relates to a subway station main body structure construction method based on a cover-excavation reverse construction method. Comprising the following steps of building envelope construction, excavation of earthwork above a cover plate, construction of a cushion layer, laying of a formwork, erection of reinforcing steel bars, pouring of cover plate concrete, excavation of first negative layer earthwork, construction of a middle plate support cushion layer, binding of first negative layer side wall reinforcing steel bars, binding of middle plate reinforcing steel bars, pouring of middle plate concrete, excavation of second negative layer earthwork, pouring of a bottom plate cushion layer and binding of second negative layer reinforcing steel bars. Bottom plate reinforcing steel bars are bound, bottom plate concrete is poured, and negative second-layer side wall concrete is poured. According to the scheme, under the condition that stress check calculation of the foundation pit support structure is allowed, earthwork with a certain height is excavated below the station cover excavation top-down structure plate in advance, a support erecting space is formed, and part of cover excavation earthwork is indirectly changed into open excavation earthwork; and an operation space is provided for advanced earth cutting equipment such as a long-arm excavator, a hydraulic vertical telescopic arm excavator and the like to quickly excavate earth under the plate.
本发明属于地铁车站主体结构施工技术领域，具体涉及一种基于盖挖逆作法的地铁车站主体结构施工方法，包括以下步骤：围护结构施工、开挖盖板上方土方、施作垫层、铺设模板、架设钢筋、浇筑盖板混凝土、开挖负一层土方、施作中板支架垫层、绑扎负一层侧墙钢筋、绑扎中板钢筋、浇筑中板混凝土、开挖负二层土方、浇筑底板垫层、绑扎负二层钢筋、绑扎底板钢筋、浇筑底板混凝土、负二层侧墙混凝土浇筑等。本方案在基坑围护结构受力检算允许的条件下,车站盖挖逆作结构板下预先开挖一定高度的土方,形成支架搭设空间,间接将部分盖挖土方变为明挖土方，提供了长臂挖掘机、液压垂直伸缩臂挖掘机等先进挖土设备快速开挖板下土方的作业空间。
Subway station main body structure construction method based on cover-excavation top-down construction method
一种基于盖挖逆作法的地铁车站主体结构施工方法
JIANG SHAN (author) / LIU SHILEI (author) / ZHU XIANG (author) / LIU YIFENG (author) / XUE YANJIE (author) / CAO YANHUA (author) / SUN QINGTANG (author) / WEI DONGYANG (author) / TAO MINGHU (author) / LIN HAOQUAN (author)
2024-02-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Subway station cover and excavation top-down structure and construction method
| European Patent Office | 2023
Subway station cover and excavation top-down structure and construction method thereof
| European Patent Office | 2021
Construction method of cover excavation and underground excavation combined subway station structure
| European Patent Office | 2023
| European Patent Office | 2024
Pipe curtain cover excavation reverse construction method for subway station construction
| European Patent Office | 2020