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Causes of landslide recurrence in a loess platform with respect to hydrological processes

Author

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  • Ling Xu
  • Xiaojuan Qiao
  • Caixia Wu
  • Javed Iqbal
  • Fuchu Dai

Abstract

Irrigation-induced landslide is a recurring problem in the Heifangtai loess platform of northwest China. The landslide sites are characterized by a concave topography. Numerical modeling indicates that the groundwater table at the past-landslide site rises more quickly than the other natural platform borders under irrigation conditions. This is consistent with the field observations that seepage of the groundwater appeared in the hollow is higher than that of lateral slopes. In order to investigate the response of soil behavior due to rise in groundwater table, stress-path tests were performed on undisturbed specimens. It has been observed that the increase in pore water pressure in loess can trigger soil liquefaction and eventually results in landslide. Hence, the concave past-landslide site is much more prone to landsliding, which contributed to the landslide recurrence. Copyright Springer Science+Business Media B.V. 2012

Suggested Citation

  • Ling Xu & Xiaojuan Qiao & Caixia Wu & Javed Iqbal & Fuchu Dai, 2012. "Causes of landslide recurrence in a loess platform with respect to hydrological processes," 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. 64(2), pages 1657-1670, November.
    • Handle: RePEc:spr:nathaz:v:64:y:2012:i:2:p:1657-1670
    DOI: 10.1007/s11069-012-0326-y
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    Cited by:

    1. Siyuan Ma & Jiangbo Wei & Chong Xu & Xiaoyi Shao & Shiyang Xu & Shaofeng Chai & Yulong Cui, 2020. "UAV survey and numerical modeling of loess landslides: an example from Zaoling, southern Shanxi Province, 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. 104(1), pages 1125-1140, October.
    2. Yanrong Xu & C. F. Leung & Jian Yu & Wenwu Chen, 2018. "Numerical modelling of hydro-mechanical behaviour of ground settlement due to rising water table in loess," 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. 94(1), pages 241-260, October.

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