临近地铁侧微扰动施工措施的研究

Study on construction measures of micro-disturbance near metro side

基坑安全和周边变形控制,是衡量深基坑工程成败的两大关键因素。上海近地铁侧深基坑施工作为复杂环境下施工的最具代表场景之一,以其严苛的变形控制和规范的全过程施工闻名业内。依托于前滩21-05地块典型项目,通过对项目近地铁特点的分析,因地制宜采取各种组合式系列措施,减小对地铁的扰动,达到了良好的基坑安全及地铁变形控制效果。

The safety of foundation pit and the control of surrounding deformation are two key factors to evaluate the success of deep foundation pit engineering.As one of the most representative scenes in the complex environment,the construction of deep foundation pit near Shanghai Metro is well-known for its strict deformation control and standardized whole construction process.Based on the typical project in block 21-05 of Qiantan,through the analysis of the characteristics of the project near metro,various combined series of measures are taken according to local conditions to reduce the disturbance to metro,and good safety of foundation pit and metro deformation control effect are achieved.