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Predicting daily pore water pressure in embankment dam: Empowering Machine Learning-based modeling

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Abstract

Dam safety assessment is important to implement the appropriate measures to avoid a dam break disaster as part of the water reservoirs management process. Prediction-based approaches are valuable to compare the actual measurements with the simulated values to proactively detect anomalies. However, the application of the conventional hydrostatic seasonal time (HST) has some limitations related to an instantaneous response of the dam to environmental factors, which can lead to inaccurate prediction and interpretation, especially for daily measurements. Besides, the generalization ability (GA) of these models is not analyzed enough despite its crucial importance in selecting the appropriate models. In this study, the multiple linear regression (MLR), artificial neural network (ANN), support vector regression (SVR), and adaptive boosting (AdaBoost) models with nonlinear autoregressive exogenous (NARX) inputs are proposed to incorporate the response delay of the dam to the hydraulic load. Thus, these models were evaluated and compared with the HST model for predicting the daily pore water pressure in an embankment dam. Moreover, we proposed a classification method of the models into four categories, namely perfect, excellent, good, and poor according to the GA. Results show that, except for the AdaBoost, the other ML models outperformed the traditional statistical approach (HST) in terms of prediction accuracy as well as the GA. Overall, the study results provide new insights in enhancing the monitoring processes and dam safeties by detecting the anomalies early through the comparison of the measurements and simulated results produced by the best-fitted models from the confidence interval (CI) perspective.

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All data and materials used in this study are valuable in request.

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Acknowledgements

This work is supported by the River Basin Agency of Bouregreg and Chaouia as manager of the Heimer dam by providing the data required. The authors thank the agency for great assistance and help. Also, the authors thank four anonymous reviewers and editors for their comments and suggestions during the revising process.

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Contributions

AEB: Writing — original draft, conceptualization, methodology, visualization, and formal analysis. MM: Review and editing. TA: Writing — review and editing and supervision. AN: Writing — review and editing and formal analysis. BA: Review and editing and formal analysis. YB: Review and editing and formal analysis. NM: Review and editing and formal analysis. KT: Review and editing, formal analysis and project administration. MM: Review and editing and formal analysis.

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Correspondence to Ali El Bilali.

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The authors declare no competing interests.

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Appendix

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Fig. 5
figure 5

Example of hourly measurements provided by a failed VW piezometer

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El Bilali, A., Moukhliss, M., Taleb, A. et al. Predicting daily pore water pressure in embankment dam: Empowering Machine Learning-based modeling. Environ Sci Pollut Res 29, 47382–47398 (2022). https://doi.org/10.1007/s11356-022-18559-7

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  • DOI: https://doi.org/10.1007/s11356-022-18559-7

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