A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforcing method for existing building adjacent to deep foundation pit
The invention discloses a reinforcing method for a deep foundation pit adjacent to an existing building, which comprises the following steps: firstly, an L-shaped grouting reinforcing area is arranged between the foundation pit and the existing building, the L-shaped grouting reinforcing area comprises a vertical isolation section and a transverse isolation section, the vertical isolation section is positioned between a retaining structure of the foundation pit and a retaining structure of the existing building, and the transverse isolation section is positioned between the retaining structure of the foundation pit and the retaining structure of the existing building; the position of the transverse isolation section is lower than the bottom surface of the existing building and higher than the bottom surface of the foundation pit; and then a continuous wall is constructed on the side, close to the foundation pit, of the vertical isolation section through an SMW construction method, and reinforcement is completed. By the adoption of the method, deformation of the existing structure and stratum settlement can be prevented at the same time, the self-stabilization capacity and bearing capacity of the soil body adjacent to the enclosure structure are effectively improved, the risk of further deformation in the foundation pit excavation process is reduced, the influence on surrounding buildings is reduced, and the construction efficiency is improved while normal advancing of foundation pit construction is guaranteed. The disturbance to the surrounding environment is small, and good application prospects and economic benefits are achieved.
本发明公开了一种深基坑邻近既有建筑的加固方法，包含如下步骤：先在基坑与既有建筑之间设置L型注浆加固区，所述L型注浆加固区包含竖向隔离段和横向隔离段，所述竖向隔离段位于所述基坑的围护结构与既有建筑的围护结构之间，所述横向隔离段的位置低于所述既有建筑的底面、高于所述基坑的底面；然后在所述竖向隔离段靠近所述基坑一侧采用SMW工法施工连续墙，完成加固。采用本方法能够同时实现防止既有结构变形和避免地层沉降，有效地提高紧邻围护结构土体的自稳能力和承载力，减小基坑开挖过程中进一步变形的风险，降低对周边建筑物的影响，并且，在保证基坑施工正常推进的同时，对周边环境扰动小，且具有良好的应用前景和经济效益。
Reinforcing method for existing building adjacent to deep foundation pit
The invention discloses a reinforcing method for a deep foundation pit adjacent to an existing building, which comprises the following steps: firstly, an L-shaped grouting reinforcing area is arranged between the foundation pit and the existing building, the L-shaped grouting reinforcing area comprises a vertical isolation section and a transverse isolation section, the vertical isolation section is positioned between a retaining structure of the foundation pit and a retaining structure of the existing building, and the transverse isolation section is positioned between the retaining structure of the foundation pit and the retaining structure of the existing building; the position of the transverse isolation section is lower than the bottom surface of the existing building and higher than the bottom surface of the foundation pit; and then a continuous wall is constructed on the side, close to the foundation pit, of the vertical isolation section through an SMW construction method, and reinforcement is completed. By the adoption of the method, deformation of the existing structure and stratum settlement can be prevented at the same time, the self-stabilization capacity and bearing capacity of the soil body adjacent to the enclosure structure are effectively improved, the risk of further deformation in the foundation pit excavation process is reduced, the influence on surrounding buildings is reduced, and the construction efficiency is improved while normal advancing of foundation pit construction is guaranteed. The disturbance to the surrounding environment is small, and good application prospects and economic benefits are achieved.
本发明公开了一种深基坑邻近既有建筑的加固方法，包含如下步骤：先在基坑与既有建筑之间设置L型注浆加固区，所述L型注浆加固区包含竖向隔离段和横向隔离段，所述竖向隔离段位于所述基坑的围护结构与既有建筑的围护结构之间，所述横向隔离段的位置低于所述既有建筑的底面、高于所述基坑的底面；然后在所述竖向隔离段靠近所述基坑一侧采用SMW工法施工连续墙，完成加固。采用本方法能够同时实现防止既有结构变形和避免地层沉降，有效地提高紧邻围护结构土体的自稳能力和承载力，减小基坑开挖过程中进一步变形的风险，降低对周边建筑物的影响，并且，在保证基坑施工正常推进的同时，对周边环境扰动小，且具有良好的应用前景和经济效益。
Reinforcing method for existing building adjacent to deep foundation pit
一种深基坑邻近既有建筑的加固方法
ZHAO WEIXING (author) / LI XUE (author) / HUANG GUANGKAI (author) / LI SHANGMING (author) / WANG JINGXIANG (author) / LI FANGLI (author) / LIU JINQIAO (author) / GAO YINBIN (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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