深基坑支护设计及施工过程监测分析——以福建省儿童医院(区域儿童医学中心)为例

Design and construction process monitoring analysis of deep foundation pit support——Taking Fujian Children's Hospital(Regional Children's Medical Center)as an example

以福建省儿童医院(区域儿童医学中心)项目为例,针对该深基坑的特点,介绍了基坑支护设计和排水措施设计,施工过程对深层土体水平位移、基坑坡顶水平位移及沉降、支护桩内力、地下水位、周边建筑及地表进行监测。监测数据表明:基坑的开挖对土体位移、地下水位和周边环境影响非常小,各监测项目的观测数据在监测周期内均在设计预警值内,从而保障了施工作业的安全。本案例可供其他类似项目参考。

Taking the Fujian Children's Hospital(Regional Children's Medical Center)project as an example,this paper introduces the design of foundation pit and drainage measures based on the characteristics of the deep foundation pit.The horizontal displacement of deep soil,the horizontal displacement and settlement of foundation pit slope top,the internal force of support piles,groundwater level,surrounding buildings and ground surface were monitored during construction process.The monitoring data shows that the excavation of the foundation pit has relatively small impact on soil displacement,groundwater level and surrounding environment.The observation data of each monitoring item is within the design warning value during the monitoring period,thus ensuring the safety of construction operations.This case can be used as a reference for other similar projects.