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Simulation of flow slides in municipal solid waste dumps using a modified MPS method

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  • Yu Huang
  • Chongqiang Zhu

Abstract

Flow slides in municipal solid waste (MSW) dumps have caused serious damage to structures and casualties all over the world. Therefore, much attention should be paid to this type of disaster to elucidate the flow mechanisms and fluidization characteristics of MSW, which are essential for the assessment and prevention of flowlike hazards. To bypass the deficiencies of the traditional analysis methods that use the mesh method and are based on a framework of solid mechanics, the moving particle semi-implicit (MPS) method, which is a purely Lagrangian meshless method and proposed for incompressible flow, is introduced to study flow slides in MSW landfills. Considering the no-physical pressure fluctuation that affects the simulation accuracy in the original MPS, the original MPS is revised in three ways: the kernel function, the source term of the Poisson equation and the search for free surface particles. Two benchmark problems, the dam break problem and the static pressure problem, are computed to illustrate the improvement of the pressure stability of the modified MPS. The Bingham constitutive model combined with the Mohr–Coulomb failure criterion is adopted to depict the dynamic features of MSW flow slides, and the equivalent viscosity is employed to bridge the gap between Bingham fluid models and Newtonian fluid models. This method, ultimately, is applied to simulate real flow slides in the Umraniye–Hekimbashi landfill and the Payatas waste dump. The numerical results show good consistency with the field data, indicating that the modified MPS method is capable of capturing the essential dynamic behavior and reproducing the entire process of complicated flow slides in MSW dumps. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • Yu Huang & Chongqiang Zhu, 2014. "Simulation of flow slides in municipal solid waste dumps using a modified MPS method," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 74(2), pages 491-508, November.
    • Handle: RePEc:spr:nathaz:v:74:y:2014:i:2:p:491-508
    DOI: 10.1007/s11069-014-1194-4
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    Citations

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    Cited by:

    1. Yu Huang & Guanbo Fan, 2016. "Engineering geological analysis of municipal solid waste landfill stability," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 84(1), pages 93-107, October.
    2. Zhengyang Su & Guizhi Wang & Yakun Wang & Xiang Luo & Hao Zhang, 2022. "Numerical simulation of dynamic catastrophe of slope instability in three Gorges reservoir area based on FEM and SPH method," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 111(1), pages 709-724, March.
    3. Yu Huang & Chongqiang Zhu, 2015. "Numerical analysis of tsunami–structure interaction using a modified MPS method," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(3), pages 2847-2862, February.
    4. Qinjun Wang & Jingjing Xie & Jingyi Yang & Peng Liu & Dingkun Chang & Wentao Xu, 2022. "A Model between Cohesion and Its Inter-Controlled Factors of Fine-Grained Sediments in Beichuan Debris Flow, Sichuan Province, China," Sustainability, MDPI, vol. 14(19), pages 1-12, October.
    5. Siliang Shen & Zheyu Hu, 2023. "Factors Affecting the Maximum Leachate Head in the Landfill Drainage Layer under Clogging Conditions," Sustainability, MDPI, vol. 15(6), pages 1-16, March.
    6. Chongqiang Zhu & Yu Huang & Liang-tong Zhan, 2018. "SPH-based simulation of flow process of a landslide at Hongao landfill in China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 93(3), pages 1113-1126, September.
    7. Chongqiang Zhu & Hualin Cheng & Zhiyi Chen & Yu Huang, 2021. "Simulation-based hazard management of a constructed landfill for flow slide scenario," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 106(3), pages 1867-1878, April.

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