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Predictive modelling of piezometric head and seepage discharge in earth dam using soft computational models

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Abstract

Predictions of pore pressure and seepage discharge are the most important parameters in the design of earth dams and assessing their safety during the operational period as well. In this research, soft computing models namely multi-layer perceptron neural network (MLPNN), support vector machine (SVM), multivariate adaptive regression splines (MARS), genetic programming (GP), M5 algorithm, and group method of data handling (GMDH) were used to predict the piezometric head in the core and the seepage discharge through the body of earth dam. For this purpose, the data recorded by the absolute instrument during the last 94 months of Shahid Kazemi Bukan Dam were used. The results showed that all of the applied models had a permissible level of accuracy in the prediction of the piezometric heads. The average error indices for the models in the training phase were R2= 0.957 and RMSE= 0.806 and in the testing phase were equal to R2= 0.949 and RMSE= 0.932, respectively. The performances of all models except the M5 and MARS in predicting seepage discharge are nearly identical; however, the best is the MARS, and the weakest is the M5 algorithm.

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Some or all data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request. All data, models, and code generated or used during the study appear in the submitted article.

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Amir Hamzeh Haghiabi: research group manager. Sarmad Dashti Latif: review and editing. Abbas Parsaie: modelling, running the soft computing codes, and performing the simulation. Ravi Prakash Tripathi: soft computing programming.

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Correspondence to Sarmad Dashti Latif.

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Responsible Editor: Marcus Schulz

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Parsaie, A., Haghiabi, A.H., Latif, S.D. et al. Predictive modelling of piezometric head and seepage discharge in earth dam using soft computational models. Environ Sci Pollut Res 28, 60842–60856 (2021). https://doi.org/10.1007/s11356-021-15029-4

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  • DOI: https://doi.org/10.1007/s11356-021-15029-4

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