摘要
为了研究双排钢板桩围堰系统稳定机理,在对围堰的回填料、宽高比、土体加固等因素进行参数敏感性分析的基础上,提出围堰体系冗余度的概念和表达方式,并对冗余度进行定量计算,结果与工程实际相吻合,验证了冗余度理论在双排钢板桩围堰工程中适用性及可行性。设计中可根据冗余度的分析,对影响围堰受力稳定的关键因素进行控制性设计。
In order to study the stability mechanism of the double-row steel sheet pile cofferdam system,the finite element method is used to analyze the parameters sensitivity of the backfill,aspect ratio and soil reinforcement of the cofferdam.On this basis,the definition and expression of double-row steel sheet piles cofferdam supporting system redundancy are proposed.The redundancy results of quantitative calculation are consistent with the engineering practice.The above analysis verifies the applicability and feasibility of the redundancy theory in double-row steel sheet piles cofferdam engineering.The practical engineering can optimize the design of the key factors affected the stability of double-row steel sheet-pile cofferdam system according to the redundancy analysis.
作者
江杰
顾倩燕
陈骏
朱艳
高加云
俞梅欣
JIANG Jie;GU Qian-yan;CHEN Jun;ZHU Yan;GAO Jia-yun;YU Mei-xin(College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China;Guangxi Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning 530004, China;Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin 541004, China;China Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063, China)
出处
《水运工程》
北大核心
2017年第9期174-180,共7页
Port & Waterway Engineering
基金
国家自然科学基金项目(No.51568006)
上海市普陀区高层次人才科研创新项目(No.2014-A-13)
广西防灾减灾与结构安全重点实验室开放课题项目(No.2014ZDK0010)
广西岩土力学与工程重点实验室资助课题项目(No.14KF-03)
广西科技厅岩土与地下工程创新团队项目(2016GXNSFGA380008)
关键词
双排钢板桩围堰
数值模拟
冗余度
稳定性
double-row steel sheet-pile cofferdam
numerical simulation
redundancy
stability
