长江漫滩地区紧邻文物地铁车站深基坑变形分析及控制研究

Cause analysis and control study of deep foundation pit near cultural relic subway station in Yangtze River floodplain area

土层深基坑在复杂环境条件下施工,结构变形的控制是保证基坑安全稳定的基本。以南京西站软土深基坑工程施工为例,结合其复杂地质条件、基坑周边环境的影响,对支护结构深层水平位移、地表沉降等原因进行分析,并采取相应对策,研究总结其变形控制措施和实际效果。

The construction of deep foundation pit in soft soil under complex environment condition,the control of structural deformation is he basic to ensure the safety and stability of foundation pit.Soft soil deep foundation pit engineering construction based on nanjing west railway station as an example,combined with its complex geological conditions,the influence of the foundation pit surrounding environment,the deep horizontal displacement of retaining structure,analyzes reasons for surface subsidence deformation is too large and take corresponding countermeasures,summarizes its deformation control measures and practical effect.