舟山海堤沉降稳定分析  

Stability Analysis of Seawall Subsidence in Zhoushan

作　　者：严乾 可建伟 王亚军 王友博 高世虎 熊站 王晋宝 李强 马慧彪 甘孝清 YAN Qian;KE Jianwei;WANG Yajun;WANG Youbo;GAO Shihu;XIONG Zhan;WANG Jinbao;LI Qiang;MA Huibiao;GAN Xiaoqing(School of Maritime and Civil Engineering,Zhejiang Ocean University,Zhoushan 316002,China;Institute of Engineering Safety and Disaster Prevention,Yangtze River Scientific Research Institute,Wuhan 430010,China;China Electric Power Complete Equipment Co.,Ltd.,Beijing 100080,China;China Communications Water Transportation Planning and Design Institute Co.,Ltd.,Beijing 100007,China)

机构地区：[1]浙江海洋大学港航与交通运输过程学院,浙江舟山316002 [2]长江科学院工程安全与灾害防治研究所,湖北武汉430010 [3]中国电能成套设备有限公司,北京100080 [4]中交水运规划设计院有限公司,北京100007

出　　处：《人民珠江》2018年第9期47-50,55,共5页Pearl River

基　　金：国家自然科学基金(51109118);浙江省自然科学基金(LY14E090001);清华大学水沙科学与水利水电工程国家重点实验室开放基金(sklhse-2018-E-03)

摘　　要：以舟山某典型海堤为研究对象,建立了材料不同状态本构模型。采用连续性介质力学三维弹塑性有限单元法,结合动力、静力加载方式,分别设置弹塑性条件;对结构整体、框架、桩基础进行稳定对比分析。结果表明:沉降主要发生在淤泥层位置,同时钻孔灌注桩基对控制软基条件下结构的位移及应力均有显著效果,最大位移不超过5 cm、最大应力也在安全范围内,故断定堤坝总体安全。Taking a typical seawall in Zhoushan as the research object, this paper established constitutive models of materials in different states. Combined with dynamic and static load mode,itadopted3 d elastoplastic finite element method of continuous medium mechanics and set the elastoplastic conditions,respectively. This paper carriedout the stability comparison analysis to the structure integrity, the frame and the pile foundation. The results showed that the subsidence mainly occuredin the silt layer and the pile foundation ofdrilling perfusion had significant effect on controlling the displacement and stress of the structure under the condition of soft foundation. The maximum displacement is no more than 5 cm and the maximum stress is within the safe range, so the overall damsafety can be determined.

关 键 词：海堤 本构模型 弹塑性 有限单元法 稳定分析 

分 类 号：U175[交通运输工程]