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Research progress of coarse-grained slip zone soil in China

Author

Listed:
  • Zechuang Li

    (Northeast Forestry University)

  • Pu Zhou

    (Northeast Forestry University)

Abstract

The study on the strength characteristics of slip zone soils is an important part of landslide stability analysis. Current research on slip zone soils has concentrated on fine-grained slip zone soils. Meanwhile, investigations on slip zone soils that contain coarse particles are scarce. This study focuses on a review and analysis of the influence of specific factors, such as coarse-grained content, moisture content, and mineral composition, as well as the micro and meso aspects and numerical simulations on the strength characteristics of slip zone soils, based on a brief summary of the distribution range and geological characteristics of this type of slip zone soil. The concept of coarse-grained slip zone soils is proposed and compared with soil–rock mixtures. Research showed that the content, shape, size of the coarse particles, moisture content, and the composition and proportion of the clay minerals have an influence on the strength parameters of the slip zone soil. The deformation mechanism of the slip zone soil is further revealed from the perspective of particle deformation and movement at the micro- and meso-level, and the research method of combining macro, meso, and micro is emphasized. Finally, several aspects that should be strengthened in the research work are pointed out, such as the influence of coarse particle difference (content, shape, etc.) on the mechanical properties of the slip zone soil, the development process from meso-deformation to macro-deformation, the internal relationship between macro-parameters and meso-parameters, and the mechanical properties of weak layers of landslides in the permafrost regions.

Suggested Citation

  • Zechuang Li & Pu Zhou, 2023. "Research progress of coarse-grained slip zone soil 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. 118(1), pages 1-29, August.
    • Handle: RePEc:spr:nathaz:v:118:y:2023:i:1:d:10.1007_s11069-023-06005-x
    DOI: 10.1007/s11069-023-06005-x
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    References listed on IDEAS

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    1. Hong Wang & Guangyu Long & Jianxing Liao & Yan Xu & Yan Lv, 2022. "A new hybrid method for establishing point forecasting, interval forecasting, and probabilistic forecasting of landslide displacement," 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(2), pages 1479-1505, March.
    2. Jingjing Yan, 2015. "Characteristics of the Study Area," SpringerBriefs in Economics, in: Comprehensive Evaluation of Effective Biomass Resource Utilization and Optimal Environmental Policies, edition 127, chapter 0, pages 19-32, Springer.
    3. Junbiao Yan & Zongxing Zou & Rui Mu & Xinli Hu & Jincheng Zhang & Wen Zhang & Aijun Su & Jinge Wang & Tao Luo, 2022. "Evaluating the stability of Outang landslide in the Three Gorges Reservoir area considering the mechanical behavior with large deformation of the slip zone," 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. 112(3), pages 2523-2547, July.
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