单层大直径圆环支撑在软土深大复杂基坑工程中的应用与研究  

Application and Study of Single-layer Large-diameter Circular Support in Deep and Large Complex Foundation Pit Engineering in Soft Soil

作　　者：何林南 HE Linnan(Shanghai Marine Geological Survey and Design Co.,Ltd.,Shanghai 200129,China)

机构地区：[1]上海海洋地质勘察设计有限公司,上海200129

出　　处：《建筑施工》2024年第5期719-722,共4页Building Construction

摘　　要：以浙江省台州中心城区某深大复杂软土基坑工程为背景,根据基坑周边环境,结合工程特点及方案选型分析,采用大直径圆环支撑结构体系,有效解决了周边环境复杂、施工场地狭小及支撑下土方开挖效率低等问题。通过数值模拟分析基坑开挖对周边道路及建筑物的影响,计算结果和实际监测数据显示,采用单层大直径圆环支撑体系能较好控制基坑变形,确保基坑周边环境的安全,为类似地质和边界条件下深大基坑工程设计提供一定经验。Based on a deep and complex soft soil foundation pit project in the central city of Taizhou,Zhejiang Province,according to the surrounding environment of the foundation pit,combined with the engineering characteristics and scheme selection analysis,the large-diameter circular support structure system is adopted to effectively solve the problems of complex surrounding environment,narrow construction site and low efficiency of earthwork excavation under support.The influence of foundation pit excavation on surrounding roads and buildings is analyzed by numerical simulation,and the calculation results and actual monitoring data show that the single-layer large-diameter circular support system can better control the deformation of foundation pit and ensure the safety of the surrounding environment,which provides some experience for the design of deep and large foundation pit projects under similar geological and boundary conditions.

关 键 词：软土地区 复杂深基坑 单层大直径 圆环支撑 

分 类 号：TU753[建筑科学—建筑技术科学]