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Real time monitoring for analysis of dam stability:Potential of nonlinear elasticity and nonlinear dynamics approaches

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Frontiers of Structural and Civil Engineering 2013年第2期7卷 188-205页

作者： t.CHELIDZE t.matcharashvili V.ABASHIDZE M.KALABEGISHVILI N.ZHUKOVA M.Nodia Institute of Geophysics Ivane Javakhishvili Tbilisi State UniversityTbilisi 0218Georgia European Centre on Geodynamical Hazards of High Dams 1 Alexidze str.Tbilisi 0171Georgia Georgian technical University Tbilisi 0171Georgia

Large dams are complex structures with nonlinear dynamic *** often are forced to assess dam safety based on the available incomplete data,which is extremely *** important problem can be solved with the modern theory of complex *** is possible to derive characteristics of the whole unknown dynamics of a structure using few data sets of certain carefully selected representative parameter(s).By means of high quality continuous records of some geotechnical characteristic(s)of a dam and modern methods of time series linear/nonlinear analysis the main dynamical features of the entire,unknown process(here—dam deformation)can be *** created the cost-effective Monitoring telemetric System for Dam Diagnostics(DAMWAtCH),which consists of sensors(tiltmeters),terminal and central controllers connected by the GSM/GPRS Modem to the diagnostic *** tilt data recorded for varying reservoir level are compared with static design model of dam deformations computed by a finite element method(FEM)for the dam-reservoir-foundation ***,recently developed linear/nonlinear data analysis and prediction schemes may help to quantify fine dynamical features of the dam *** software package DAMtOOL has been developed for this *** differences between measured and theoretically predicted response parameters of the dam may signal abnormal behavior of the *** data obtained already by testing of the DAMWAtCH/DAMtOOL system during operation of the high Enguri arc dam and reservoir(Georgia)show interesting long-term and short-term patterns of tilts in the dam body,which can be used for dam *** proposed real-time telemetric monitoring(DAMWAtCH)complex and linear/nonlinear dynamical analysis system(DAMtOOL)are unique.

关键词： real time monitoring telemetry dam tilts diagnostic tools hysteresis nonlinear dynamics

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