大型建筑深基坑变形监测研究

Research on Deformation Monitoring of Deep Foundation Pit of Large Building

深基坑工程的施工监测可以对深基坑的开挖施工提供控制依据。本文结合上海地铁某站基坑监测实例,分析了该基坑工程的工程概况及监测内容,并对基坑坑外地表沉降、围护墙顶部变形、围护墙体侧向变形、支撑轴力、坑外潜水水位、承压水水位、立柱桩垂直位移的监测数据进行了分析,为基坑的变形预测提供了基础数据条件。研究成果可为类似的基坑工程提供参考和借鉴。

The construction monitoring of deep foundation pit engineering can provide control basis for the excavation construction of deep foundation pit.Combined with the monitoring example of a subway station in Shanghai,this paper analyzes the engineering situation and monitoring contents of the foundation pit,and analyzes the monitoring data of the surface settlement of the foundation pit,the deformation of the top of the retaining wall,the lateral deformation of the retaining wall,the supporting axial force,the groundwater level outside the pit,the conf ined water level,and the vertical displacement of the column pile.The research results can provide reference for similar foundation pit engineering.