软土地区大面积贴边坑中坑支护形式的工程实践研究

Study on Retaining Structures of the Large Pit-in-pit Excavation in Soft-soil Area

以上海软土地区某基坑工程为实例,结合坑中坑的位置、开挖深度、周边环境和施工条件等特点,详细阐述了不同条件下贴边坑中坑的支护形式。通过对监测结果的分析,证明了该设计的安全性和合理性,工程取得的经验对于类似工程具有一定的实践和参考意义。

Taking a foundation pit project in soft-soil area of Shanghai as an example, the retaining and protection of the pit-in-pit are expounded under different conditions in combination with the characteristics of the pit location, pit depth, surrounding environment and construction conditions. Through the analysis and research of the monitoring results , the safety and rationality of the design are proved. It would provide a good reference to other similar projects.