混凝土坝流激响应分析与性状诊断方法研究进展  

Research progress of concrete dam flow-induced response analysis and behavior diagnosis method

作　　者：魏博文[1] 李火坤[1] 黎良辉[1] WEI Bowen;LI Huokun;LI Lianghui(School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学建筑工程学院,江西南昌330031

出　　处：《江西水利科技》2021年第3期199-205,共7页Jiangxi Hydraulic Science & Technology

基　　金：国家自然科学基金资助项目(51779115,51869011)。

摘　　要：混凝土坝在泄洪时泄流结构不断经受高速水流的拍击振动,所造成的老坝裂缝拓展和坝体累积损伤关乎整个水利工程的运行安危,依托对坝体泄流结构进行安全监测与诊断是保障混凝土坝稳定运行与健康服役的重要技术手段.文中在概括混凝土坝静动态监测与测试技术、流激振动响应分析方法与服役性态信息融合诊断等方面所开展科研工作的基础上,论述了混凝土坝流激响应特性和体征判诊方法的现有研究成果,并结合混凝土坝运行体征状态探讨了当前研究的不足与亟待发展和完善的研究领域,以期进一步完善混凝土坝泄流激振监控理论体系,为混凝土坝长效服役和运行管理提供理论依据与决策支持.The discharge structure of the concrete dam is constantly subjected to the slap and vibration of the high-speed water flow during the flood discharge.The crack expansion of the old dam and the accumulated damage of the dam body caused by the flood discharge are related to the safety of the entire water conservancy project.The safety monitoring and diagnosis of the discharge structure of the dam body are important technical means to ensure the stable operation and healthy service of concrete dam.Based on the scientific research carried out in the aspects of concrete dam static and dynamic monitoring and testing technology,flow-induced vibration response analysis method,and service behavior information fusion diagnosis,the present research achievements on the flow induced response characteristics and behavior diagnosis method of concrete dam are discussed.Combined with the operation characteristics of concrete dam,the deficiencies of current research and the research fields that need to be developed and improved are discussed,in order to further improve the theoretical system of discharge induced vibration monitoring of concrete dam and provide theoretical basis and decision support for long-term service and operation management.

关 键 词：混凝土坝 流激振动 服役性态 安全诊断 

分 类 号：TV131.33[水利工程—水力学及河流动力学]