摘要
碾压混凝土坝逐层振捣碾压形成的诸多施工层面是坝体的薄弱环节,注定其结构特性较常态混凝土坝更为复杂,依托大坝原型观测资料分析大坝结构运行性态是保障碾压混凝土坝安全运行与服役寿命的重要技术手段.文中在概括碾压混凝土坝结构宏细观力学行为、多场耦合数值仿真分析与变形监控模型等方面所开展科研工作的基础上,论述了碾压混凝土坝工作性态安全监控理论和方法的现有研究成果,并结合碾压混凝土坝服役性态探讨了当前研究的不足与亟待发展和完善的研究领域,以期进一步完善碾压混凝土坝安全监控理论体系,为碾压混凝土坝安全运行与健康服役提供理论依据与技术支持.
Numerous layers caused by the construction process of layer by layer compaction in the roller compacted concrete dams(RCCD)are the weak links of RCCD,which determines that the structural properties of RCCD are complicated than concrete dams.Aanlyzing the operational behavior of the dam structures based on dam prototype observation data is an important technological means to guarantee the safety operation and service life of RCCD.The scientific achievements about the current studies on the service behavior safety monitoring theories and methods of RCCD are discussed by summarizing the existing research results about structural mechanical behavior in macroscopic and microscopic scales,seepage coupling model and displacement monitoring model of RCCD.Based on the structural characteristics of RCC dam,the deficiency of the current studies and the research areas that need development and improvement are discussed,which can help to further deepen the safety monitoring theory of RCCD and to provide theoretical basis and technical support to guarantee the safety operation and healthy service of RCCD.
作者
魏博文
吴海真
李波
江桂荣
WEI Bowen;WU Haizhen;LI Bo;JIANG Guirong(School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China;Jiangxi Provincial Department of Water Resources,Nanchang 330009,China;Changjiang River Research Institute of Changjiang Water Resources Commission,Wuhan 430010,China;National Electric Investment Group Jiangxi Electric Power Co.LTD,Nanchang 330006,China)
出处
《江西水利科技》
2018年第6期419-424,共6页
Jiangxi Hydraulic Science & Technology
基金
国家自然科学基金资助项目(51779115
51669013
51569014
51869011)
关键词
碾压混凝土坝
结构力学行为
服役性能
安全监控
Roller compacted concrete dam(RCCD)
Structural mechanical behavior
Service behavior
Safety monitoring
