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Analysis of Rainfall-Induced Landslide on Unsaturated Soil Slopes

Author

Listed:
  • Sangseom Jeong

    (Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea)

  • Kwangwoo Lee

    (Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea)

  • Junghwan Kim

    (Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Korea)

  • Yongmin Kim

    (Civil and Environmental engineering, Nanyang Technological University, Singapore 639798, Singapore)

Abstract

This paper investigates rainfall-induced landslides on partially saturated soil slopes using the 2011 Umyeonsan landslides at the center of Seoul, Korea. An integrated analysis of rainfall-induced landslide was carried out through laboratory tests, field tests, and numerical analysis. The results of comprehensive investigations in the Umyeonsan region demonstrate that landslide activity is closely related primarily to rainfall and soil properties and slope geometry, and vegetation. Numerical analysis was also performed to confirm the effect of these factors on landslide occurrence. Special attention was given to rainfall penetration analysis to determine the wetting band depth for shallow and deep-seated slope failure in watershed-scale landslide. The simulated results agree closely with the investigation results, which indicates that the applied method is appropriate for use in the simulation of landslides in unsaturated soils.

Suggested Citation

  • Sangseom Jeong & Kwangwoo Lee & Junghwan Kim & Yongmin Kim, 2017. "Analysis of Rainfall-Induced Landslide on Unsaturated Soil Slopes," Sustainability, MDPI, vol. 9(7), pages 1-20, July.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:7:p:1280-:d:105441
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    References listed on IDEAS

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    1. Thanh Le & Deg-Hyo Bae, 2013. "Evaluating the Utility of IPCC AR4 GCMs for Hydrological Application in South Korea," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(9), pages 3227-3246, July.
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    Cited by:

    1. Ming-Chien Chung & Chien-Hsin Chen & Ching-Fang Lee & Wei-Kai Huang & Chih-Hao Tan, 2018. "Failure Impact Assessment for Large-Scale Landslides Located Near Human Settlement: Case Study in Southern Taiwan," Sustainability, MDPI, vol. 10(5), pages 1-25, May.
    2. Xiangjian Rui & Lei Nie & Yan Xu & Hong Wang, 2019. "Land Degeneration due to Water Infiltration and Sub-Erosion: A Case Study of Soil Slope Failure at the National Geological Park of Qian-an Mud Forest, China," Sustainability, MDPI, vol. 11(17), pages 1-17, August.
    3. Sangseom Jeong & Azman Kassim & Moonhyun Hong & Nader Saadatkhah, 2018. "Susceptibility Assessments of Landslides in Hulu Kelang Area Using a Geographic Information System-Based Prediction Model," Sustainability, MDPI, vol. 10(8), pages 1-19, August.
    4. Joram Wachira Mburu & An-Jui Li & Horn-Da Lin & Chih-Wei Lu, 2022. "Investigations of Unsaturated Slopes Subjected to Rainfall Infiltration Using Numerical Approaches—A Parametric Study and Comparative Review," Sustainability, MDPI, vol. 14(21), pages 1-37, November.
    5. Martin Kuradusenge & Santhi Kumaran & Marco Zennaro, 2020. "Rainfall-Induced Landslide Prediction Using Machine Learning Models: The Case of Ngororero District, Rwanda," IJERPH, MDPI, vol. 17(11), pages 1-20, June.
    6. Zhilu Chang & Huanxiang Gao & Faming Huang & Jiawu Chen & Jinsong Huang & Zizheng Guo, 2020. "Study on the creep behaviours and the improved Burgers model of a loess landslide considering matric suction," 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. 103(1), pages 1479-1497, August.
    7. Waleed Abdelmoghny Metwaly Ogila, 2021. "Analysis and assessment of slope instability along international mountainous road in North Africa," 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 2479-2517, April.
    8. Sinhang Kang & Seung-Rae Lee & Sung-Eun Cho, 2020. "Slope Stability Analysis of Unsaturated Soil Slopes Based on the Site-Specific Characteristics: A Case Study of Hwangryeong Mountain, Busan, Korea," Sustainability, MDPI, vol. 12(7), pages 1-21, April.
    9. Kyungjin An & Suyeon Kim & Taebyeong Chae & Daeryong Park, 2018. "Developing an Accessible Landslide Susceptibility Model Using Open-Source Resources," Sustainability, MDPI, vol. 10(2), pages 1-13, January.
    10. Luca Schilirò & Gian Marco Marmoni & Matteo Fiorucci & Massimo Pecci & Gabriele Scarascia Mugnozza, 2023. "Preliminary insights from hydrological field monitoring for the evaluation of landslide triggering conditions over large areas," 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(2), pages 1401-1426, September.
    11. Ratan Das & Parag Phukon & T. N. Singh, 2022. "Understanding the cause and effect relationship of debris slides in Papum Pare district, Arunachal Himalaya, India," 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. 110(3), pages 1735-1760, February.

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