Study on early warning index of spatial deformation for high concrete dam  

作　　者：LEI Peng CHANG XiaoLin XIAO Feng ZHANG GuiJin SU HuaiZhi 

机构地区：[1]School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha 410114, China [2]College of Water Resources and Hydroelectric Engineering, Wuhan University. Wuhan 430072, China [3]Mid-south Design and Research Institute, China Hydropower Engineering Consulting Group Co, Changsha 410014, China [4]College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China

出　　处：《Science China(Technological Sciences)》2011年第6期1607-1614,共8页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No 50589025);the National Key Technology R&D Program (Grant No 2008BAB29B03);the Research Foundation of Education Bureau of Hunan Province, China (Grant No 09C087)

摘　　要：Owing to the deficiency in early warning for high concrete dam,a formula was established to characterize the deformation behavior of high concrete dam as a whole.The early warning index of spatial deformation was calculated by low probability principle on the basis of the deformation entropy formula proposed.The steps were as follows.Firstly,the probability method was utilized to define the degree of order and degree of chaos for each survey point.Secondly,the weight distribution among the survey points was calculated by projection pursuit analysis.Thirdly,the formula of holistic deformation entropy,which can represent the degree of order of high concrete dam,was established on the basis of synergetics and information entropy.Lastly,the early warning index of deformation entropy was computed by low probability method based on series of calculated deformation entropy values.An example showed that the dynamic property of deformation entropy is in accordance with both environmental variables and deflection deformation.Moreover,deformation entropy can be used to improve warning ability and safety management for high concrete dam.

关 键 词：deformation entropy early warning index SYNERGETICS dam monitoring concrete dam 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TV698.11[自动化与计算机技术—计算机科学与技术]