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Physics-Informed Ensemble Machine Learning Framework for Improved Prediction of Tunneling-Induced Short- and Long-Term Ground Settlement

Author

Listed:
  • Linan Liu

    (Department of Geology & Geological Engineering, Colorado School of Mines, Golden, CO 80401, USA
    Current address: School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China.)

  • Wendy Zhou

    (Department of Geology & Geological Engineering, Colorado School of Mines, Golden, CO 80401, USA)

  • Marte Gutierrez

    (Department of Civil & Environmental Engineering, Colorado School of Mines, Golden, CO 80401, USA)

Abstract

Machine learning (ML), one of the AI techniques, has been used in geotechnical engineering for over three decades, resulting in more than 600 peer-reviewed papers. However, AI applications in geotechnical engineering are significantly lagging compared with other fields. One of the reasons for the lagging is that hyperparameters used in many AI techniques need physical meaning in geotechnical applications. This paper focuses on widening the applications of ML in predicting tunneling-induced short- and long-term ground settlement and optimizing ML architectures considering their interpretability and ability to provide physically consistent results. Informed by the underlying physics knowledge, tunneling-induced ground settlement is divided into long-term and short-term settlements since different mechanisms and influencing parameters contribute to these two deformation types. Based on the above considerations, this paper introduces a physics-informed ensemble machine learning (PIML) framework to strengthen the connection between ML techniques and physics theories, followed by identifying/utilizing different sets of parameters for effectively predicting short- and long-term tunneling-induced settlements, respectively. Together with in situ observations and experimental lab results, parameters obtained from physics equations are set as inputs for the ML models. Results show that the proposed PIML framework effectively predicts tunneling-induced ground movements, with a predicting accuracy above 0.8. Additionally, parametric studies of variable significance and comparisons among different ML designs reveal that in situ observed dynamic parameters, for instance tunnel face and monitoring points (DTM), gap parameter, and tunnel depth, are essential in predicting tunneling-induced short-term settlement, while predicting long-term settlements largely depends on features, such as tunnel depth, volume compressibility, and excess pore pressure, derived from physics theories.

Suggested Citation

  • Linan Liu & Wendy Zhou & Marte Gutierrez, 2023. "Physics-Informed Ensemble Machine Learning Framework for Improved Prediction of Tunneling-Induced Short- and Long-Term Ground Settlement," Sustainability, MDPI, vol. 15(14), pages 1-18, July.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11074-:d:1194763
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    References listed on IDEAS

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    1. Mahmoud O. Elish & Tarek Helmy & Muhammad Imtiaz Hussain, 2013. "Empirical Study of Homogeneous and Heterogeneous Ensemble Models for Software Development Effort Estimation," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-21, July.
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