Abstract
This paper deduces the expressions for equivalent water level and equivalent rainfall. Different factors and methods were considered, such as the lag characteristics of the reservoir water level and rainfall on the seepage of roller-compacted concrete dams, combining the characteristics of layered pouring of the dam body, the time-varying effects of the factors affecting dam seepage, statistical regression, multilevel recursive method, and the numerical analysis method of the model with its corresponding implementation procedures. The safety monitoring model of spatial seepage, which can comprehensively reflect the seepage characteristics of roller-compacted concrete dams is set up. The engineering example shows that this model is obviously better than the statistical model in terms of fitting accuracy and searching ability. The forecast results of this model closely approach the actual monitoring state of the dam and can also be applied to the analysis of the foundation and bypass seepage of dams.
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