复杂环境下深基坑支护设计与施工监测评价

Design and construction monitoring evaluation of deep foundation pit support in complex environments

合理的基坑支护设计与施工变形监测是基坑工程的重要环节,以杭州地区某深基坑工程为背景,进行了基坑支护设计,并对基坑施工阶段的周边地表沉降、支护结构变形、地下水位、支撑轴力等进行监测和分析。监测分析结果表明:施工期间,各监测项目的监测数据均小于控制值要求,该支护方案可有效控制基坑变形,减少对周边环境的影响。通过总结监测数据规律,研究了基坑变形及内力变化的成因,为类似深基坑工程设计与施工提供参考。

Reasonable foundation pit support design and construction deformation monitoring are important aspects of foundation pit engineering.Taking a deep foundation pit project in Hangzhou as the background,the foundation pit support design was carried out,and the surrounding surface settlement,support structure deformation,groundwater level,support axial force,etc.during the construction stage of the foundation pit were monitored and analyzed.The monitoring analysis results indicate that during the construction period,the monitoring data of each monitoring project is less than the control value requirements.This support plan can effectively control the deformation of the foundation pit and reduce the impact on the surrounding environment.By summarizing the monitoring data patterns,the causes of deformation and internal force changes in foundation pits were studied,providing reference for the design and construction of similar deep foundation pit projects.