基于混合模型的铜头拱坝多参数反演分析  

Back analysis of Tongtou arch dam with multiparameters based on mixed model

作　　者：杨强[1] 付德宇[1] 薛利军[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水力发电学报》2008年第5期64-67,46,共5页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金(90715041);973课题(2002cb412708)

摘　　要：本文利用大坝观测位移回归的混合模型,对铜头拱坝多个材料参数进行反演分析。在反分析过程中,对于多参数优化反演采用简化单变量算法,并针对铜头大坝库水位变幅较小的情况提出了利用特征水位对应的位移差值建立目标函数,形成了一套完整的反分析流程。This paper introduces the back analysis of Tongtou arch dam with multiparameters by using the mixed model of observational displacement regression. In the analysis process, the simplified single variable arithmetic is used for optimized back analysis on the multi-parameters. The optimized target function is used to examine the credibility of the analyzed parameters for the conditions of smaller variation of water level, and a set of integrated anti-analysis process is formed.

关 键 词：水工结构 材料参数 位移反分析 混合模型 拱坝 

分 类 号：TV31[水利工程—水工结构工程]