Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings

With the efficient use of urban space,the construction of new foundation pit projects is becoming more and more difficult,and the research on the excavation deformation of foundation pits and its impact on surrounding buildings is becoming more important.Taking a deep foundation pit project as an ex...

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Main Authors: CHENG Xinyu, FU Chenghua, LIU Jian, JIANG Linjie
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2022-01-01
Series:Renmin Zhujiang
Subjects:
Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.09.017
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author CHENG Xinyu
FU Chenghua
LIU Jian
JIANG Linjie
author_facet CHENG Xinyu
FU Chenghua
LIU Jian
JIANG Linjie
author_sort CHENG Xinyu
collection DOAJ
description With the efficient use of urban space,the construction of new foundation pit projects is becoming more and more difficult,and the research on the excavation deformation of foundation pits and its impact on surrounding buildings is becoming more important.Taking a deep foundation pit project as an example,this study uses a three-dimensional finite element model to numerically simulate the actual excavation process.Moreover,the deformation characteristic of foundation pits and its influence on the surrounding buildings are comprehensively analyzed with the measured deformation data.The results reveal that during the excavation of a new foundation pit,the overall lateral displacement of the retaining structure toward the inside of the foundation pit occurs,and the maximum displacement occurs in the middle of the foundation pit retaining piles adjacent to the side of the buildings.The settlement of soil around and at the bottom of the foundation pit is “groove-shaped”,namely that when the excavation goes deeper,the settlement is greater.The excavation of the new foundation pit leads to the different uniform settlement of surrounding buildings,but with the construction of the retaining structure,the deformation of buildings decreases gradually and tends to be stable.The research results can provide some theoretical reference for the design and construction of similar deep foundation pit projects.
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spelling doaj-art-3e96e9e3e45a49c58568df605a6e7d8d2025-01-15T02:26:24ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347643396Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding BuildingsCHENG XinyuFU ChenghuaLIU JianJIANG LinjieWith the efficient use of urban space,the construction of new foundation pit projects is becoming more and more difficult,and the research on the excavation deformation of foundation pits and its impact on surrounding buildings is becoming more important.Taking a deep foundation pit project as an example,this study uses a three-dimensional finite element model to numerically simulate the actual excavation process.Moreover,the deformation characteristic of foundation pits and its influence on the surrounding buildings are comprehensively analyzed with the measured deformation data.The results reveal that during the excavation of a new foundation pit,the overall lateral displacement of the retaining structure toward the inside of the foundation pit occurs,and the maximum displacement occurs in the middle of the foundation pit retaining piles adjacent to the side of the buildings.The settlement of soil around and at the bottom of the foundation pit is “groove-shaped”,namely that when the excavation goes deeper,the settlement is greater.The excavation of the new foundation pit leads to the different uniform settlement of surrounding buildings,but with the construction of the retaining structure,the deformation of buildings decreases gradually and tends to be stable.The research results can provide some theoretical reference for the design and construction of similar deep foundation pit projects.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.09.017foundation pit excavationsurrounding buildingsdeformationmonitoringfinite element model
spellingShingle CHENG Xinyu
FU Chenghua
LIU Jian
JIANG Linjie
Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
Renmin Zhujiang
foundation pit excavation
surrounding buildings
deformation
monitoring
finite element model
title Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
title_full Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
title_fullStr Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
title_full_unstemmed Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
title_short Excavation Deformation Analysis of Foundation Pits and Its Influence on Surrounding Buildings
title_sort excavation deformation analysis of foundation pits and its influence on surrounding buildings
topic foundation pit excavation
surrounding buildings
deformation
monitoring
finite element model
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.09.017
work_keys_str_mv AT chengxinyu excavationdeformationanalysisoffoundationpitsanditsinfluenceonsurroundingbuildings
AT fuchenghua excavationdeformationanalysisoffoundationpitsanditsinfluenceonsurroundingbuildings
AT liujian excavationdeformationanalysisoffoundationpitsanditsinfluenceonsurroundingbuildings
AT jianglinjie excavationdeformationanalysisoffoundationpitsanditsinfluenceonsurroundingbuildings