巨型环形板撑在深厚泥炭质软土基坑中的应用分析  

Application of Giant Annular Plate Brace in Deep Peat Soft Soil Foundation Pit

作　　者：单联君 杨先华 Shan Lianjun;Yang Xianhua(Guangzhou Municipal Engineering Design&Research Institute Co.,Ltd.,Guangzhou 510060,China)

机构地区：[1]广州市市政工程设计研究总院有限公司,广东广州510060

出　　处：《市政技术》2021年第2期138-142,共5页Journal of Municipal Technology

摘　　要：论述了圆形基坑的受力特点、分析模型及方法,并以昆明滇池边国内最大规模圆形基坑为例,分析了环形板撑的刚度计算方法及影响因素,同时对影响因素做了敏感度分析。通过对圆形基坑进行整体有限元计算分析、与施工监测数据进行对比,总结了环形板撑施工应注意的问题。The stress characteristics and analysis models and methods of circular foundation pits are discussed in this paper.Taking the largest circular foundation pit in China which locates by LakeDianchiinKunmingas an example,the stiffness calculation method,influencing factorss and sensitivityof annular plate braceare analyzed.The circular foundation pit is calculated and analyzed by overall finite element.The results are compared with the construction monitoring data.The problems that needs attention in the construction of the annular plate support are summarized.

关 键 词：圆形基坑 环形板撑 刚度 深基坑敏感度 

分 类 号：TU942[建筑科学—建筑技术科学]