Multifractal Analysis on Horizontal Displacement Fluctuation of Concrete Gravity Dam
The complex relationship between the horizontal displacement of concrete gravity dam and environmental factors(such as water level and temperature)is revealed by multifractal analysis.The optimized multifractal detrended correlation analysis method and multifractal asymmetric detrended correlation analysis method are used for analysis,and the multi-scale sliding time window model is used to process the measured data.Through application analysis of the example,it is found that there are obvious multifractal characteristics between horizontal displacement and environmental factors under different trends,showing a certain degree of asymmetry.The specific analysis shows that the influence of water level change on horizontal displacement is more significant,while the influence of temperature change is relatively weak.Under the influence of environmental factors,the horizontal displacement of concrete gravity dam is in good condition,and the influence of water level change on the multifractal characteristics of displacement is more significant.
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