A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for foundation pit groups on two sides of subway close to operation
The invention discloses a construction method of foundation pit groups on two sides of a near-operation subway, which adopts a'large-bin small-excavation 'design and construction method of the foundation pit groups on two sides of the near-operation subway, and adopts a'large-bin small-excavation' construction technology to optimize foundation pit supporting systems on two sides of an operation subway structure by utilizing a digital simulation technology, so that the arrangement of partition walls is canceled; on the basis of the time-space effect theory, a layering, partitioning, symmetrical and balanced excavation mode is adopted from a far subway to a near subway to achieve subsection continuous small excavation of the large foundation pit of the near subway tunnel, the millimeter-level deformation control requirement of the foundation pit and the operation subway is effectively met, the operation safety of the subway is guaranteed, the construction speed is increased, and a large amount of construction period is saved. According to the method, the problems that deformation of the existing operating metro cannot be effectively controlled and the safety of the existing operating metro is affected when a traditional foundation pit construction method is adopted for construction of a new project foundation pit group penetrated by the existing operating metro are solved.
本发明公开了一种近运营地铁两侧基坑群的施工方法，采用近运营地铁两侧基坑群“大仓小挖”设计及施工方法，“大仓小挖”施工技术通过利用数字模拟技术优化运营地铁结构的两侧基坑支撑体系取消分隔墙设置，基于时空效应理论由远地铁向近地铁采用分层、分块、对称、平衡开挖方式实现近地铁隧道大基坑分段连续小开挖，有效实现基坑及运营地铁毫米级变形控制要求，保证了地铁的运营安全，并加快施工速度，节约大量工期。本发明解决了被既有运营地铁贯穿的新建工程基坑群的施工采用传统的基坑施工方法无法有效控制既有运营地铁变形，影响既有运营地铁安全的问题。
Construction method for foundation pit groups on two sides of subway close to operation
The invention discloses a construction method of foundation pit groups on two sides of a near-operation subway, which adopts a'large-bin small-excavation 'design and construction method of the foundation pit groups on two sides of the near-operation subway, and adopts a'large-bin small-excavation' construction technology to optimize foundation pit supporting systems on two sides of an operation subway structure by utilizing a digital simulation technology, so that the arrangement of partition walls is canceled; on the basis of the time-space effect theory, a layering, partitioning, symmetrical and balanced excavation mode is adopted from a far subway to a near subway to achieve subsection continuous small excavation of the large foundation pit of the near subway tunnel, the millimeter-level deformation control requirement of the foundation pit and the operation subway is effectively met, the operation safety of the subway is guaranteed, the construction speed is increased, and a large amount of construction period is saved. According to the method, the problems that deformation of the existing operating metro cannot be effectively controlled and the safety of the existing operating metro is affected when a traditional foundation pit construction method is adopted for construction of a new project foundation pit group penetrated by the existing operating metro are solved.
本发明公开了一种近运营地铁两侧基坑群的施工方法，采用近运营地铁两侧基坑群“大仓小挖”设计及施工方法，“大仓小挖”施工技术通过利用数字模拟技术优化运营地铁结构的两侧基坑支撑体系取消分隔墙设置，基于时空效应理论由远地铁向近地铁采用分层、分块、对称、平衡开挖方式实现近地铁隧道大基坑分段连续小开挖，有效实现基坑及运营地铁毫米级变形控制要求，保证了地铁的运营安全，并加快施工速度，节约大量工期。本发明解决了被既有运营地铁贯穿的新建工程基坑群的施工采用传统的基坑施工方法无法有效控制既有运营地铁变形，影响既有运营地铁安全的问题。
Construction method for foundation pit groups on two sides of subway close to operation
近运营地铁两侧基坑群的施工方法
HUANG JUNHUA (author) / YAO WENSHAN (author) / LIU XINKUN (author) / ZHAO ZIYU (author) / ZHANG QI (author) / CHEN QISHENG (author)
2022-10-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2021
Construction method of foundation pit close to subway tunnel
| European Patent Office | 2023
Construction method for bridge pile foundation close to subway tunnel
| European Patent Office | 2023
| European Patent Office | 2024