Safety monitoring model for concrete dam considering blind spot in dynamic mutation of deformation
Zhenkai Xu · Yangtze River · 2013
For the phenomenon of data pulsating in the observed time series of dam deformation,a diagnosis method that can accurately identify the blind spot of dynamic mutation in the data series is proposed,and a deformation monitoring model for concrete dam considering blind spot of dynamic mutation is established based on dynamical cross-correlation factor index method and cloud model.On the basis of evolvement analysis on dam deformation using uncertain dynamic system,while comprehensively applying numerical methods of phase space reconstruction,cloud model,wavelet analysis,a diagnosis method to predict abnormality variation of working state of dam is established,from the aspect of identifying dynamic mutation blind spot in deformation series.Project examples show that the method can find out the dynamic mutation blind spot in observed data series and eliminate its adverse influence on deformation series,improving reliability of dam safety monitoring model.