宁波地铁车站深基坑地下连续墙变形特征研究

Study on deformation characteristics of diaphragm wall in deep foundation pit of Ningbo metro stations

以宁波地铁1号线一期某地铁车站深基坑地下连续墙变形监测数据为基础,研究深基坑开挖过程中地下连续墙变形速率和累计变形的变化规律,分析地下连续墙的变形特征及不同开挖工况下累计变形所占比例,并据此提出施工控制措施,以期为后续同类基坑工程的设计和施工提供参考。

Based on the deformation monitoring data of the underground diaphragm wall of a deep foundation pit in project phase I of Ningbo metro line 1, this paper studies the change pattern of the deformation rate and cumulative deformation of the diaphragm wall during the excavation of deep foundation pit, analyzes the deformation characteristics of the diaphragm wall and percentage of the accumulative deformation of under different excavation conditions, and puts forward the construction control measures accordingly in order to provide references for later similar foundation pit design and construction.