Observed displacement data-based identification method of deformation time-varying effect of high concrete dams

作     者：WANG ShaoWei GU ChongShi BAO TengFei WANG ShaoWei;GU ChongShi;BAO TengFei

作者机构：l School of Environmental and Safety Engineering Changzhou University Changzhou 213164 China State Key Laboratory of Hydrology-Water Resources andHydraulic Engineering Hohai University Nanjing 210098 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2018年第61卷第6期

页      面：906-915页

核心收录：

学科分类：0810[工学-信息与通信工程] 081504[工学-水利水电工程] 08[工学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51709021&51479054) the Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering(Grant No.2016491111) 

主　　题：high concrete dam deformation time-varying effect causing analysis identification method 

摘      要：The long-term safety of high concrete dams has become the focus and central issues of public attention. Deformation is an actual comprehensive reflection of concrete dams. Especially the deformation time-varying effect, is a key index for evaluating the structural behavior, health status, and their evolution of a concrete dam in long-term service. In this paper, causing factors of the deformation time-varying effect of concrete dams were analyzed, and the time-varying effect was divided into two parts, which are the inherent time-varying effect and the time-varying effect caused by the change of dam structural performance. Then, based on the observed dam displacement and the wavelet multi-resolution analysis, causal models for identifying the later deformation time-varying effect and the identification process were proposed. Finally, the efficiency and rationality of the proposed method were verified by two actual concrete dams with runoff reservoir and regulatory reservoir.