科技创新与应用2025，Vol.15Issue(36)：26-30,5.DOI:10.19981/j.CN23-1581/G3.2025.36.006
南京某地铁车站深基坑开挖稳定性分析
摘要
Abstract
Based on the monitoring data of the foundation pit project of Nanjing Metro Liuzhou Road Station,this study systematically analyzed the evolution laws of horizontal displacement of the diaphragm wall and surface settlement.The monitoring results show that the maximum horizontal displacement of the long side wall of the foundation pit appears at the ZQT10 measuring point,among which the deformation caused by excavation supports 1-2 accounts for 76.66%,which is significantly higher than that of other construction stages;the maximum surface settlement of the DB5 section is 53.57 mm,which exceeds the design limit of 53.06%,and the settlement increase during the exposure period of the bottom of the pit reaches 41.16%.The analysis found that excessive support spacing and prolonged exposure time at the bottom of the pit are the main reasons for excessive deformation,and timely erection of the support system can effectively control the development of subsequent deformation.The research results provide important reference for deformation control in subway foundation pit construction under similar geological conditions.关键词
岩土工程/基坑监测/地铁基坑/地表沉降/地连墙变形Key words
geotechnical engineering/foundation pit monitoring/subway foundation pit/surface settlement/diaphragm wall deformation分类
建筑与水利引用本文复制引用
..南京某地铁车站深基坑开挖稳定性分析[J].科技创新与应用,2025,15(36):26-30,5.
