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Analysis of an anti-dip landslide triggered by the 2008 Wenchuan earthquake in China

Author

Listed:
  • Runqiu Huang
  • Jianjun Zhao
  • Nengpan Ju
  • Guo Li
  • Min Lee
  • Yanrong Li

Abstract

The Guantan landslide, with a total displaced mass of about 468 × 10 4 m 3 , was triggered by the 2008 Wenchuan earthquake and succeeding rainfall in Jushui Town, Sichuan Province, China. The landslide occurred on an anti-dip hard rock slope with a weak rock founding stratum of 200 m in thickness. To investigate the failure mechanism of the Guantan landslide, dynamic behaviors of hard and soft rock slopes were investigated by means of large scale shaking table tests. The laboratory models attempted to simulate the field geological conditions of the Guantan landslide. Sinusoidal waves and actual seismic waves measured from the Wenchuan Earthquake were applied on the slope models under 37 loading configurations. The experimental results indicated that deformation mainly developed at a shallow depth in the upper part of the hard rock slope and in the upper (near the crest) and lower (near the toe) parts of the soft rock slope. An equation for predicting the depth of sliding plane was proposed based on the location of the maximum horizontal acceleration. Finally, it was concluded that the failure process of the Guantan landslide occurred in three stages: (1) toppling failure caused by compression of the underlying soft rock strata, (2) formation of crushed hard rock and sliding surface in soft rock as the result of seismic shocks, particularly in the horizontal direction, and (3) aftershock rainfall accelerates the process of mass movement along the sliding plane. Copyright The Author(s) 2013

Suggested Citation

  • Runqiu Huang & Jianjun Zhao & Nengpan Ju & Guo Li & Min Lee & Yanrong Li, 2013. "Analysis of an anti-dip landslide triggered by the 2008 Wenchuan earthquake 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. 68(2), pages 1021-1039, September.
  • Handle: RePEc:spr:nathaz:v:68:y:2013:i:2:p:1021-1039
    DOI: 10.1007/s11069-013-0671-5
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    References listed on IDEAS

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    1. O. Katz & P. Reichenbach & F. Guzzetti, 2011. "Rock fall hazard along the railway corridor to Jerusalem, Israel, in the Soreq and Refaim valleys," 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. 56(3), pages 649-665, March.
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    Cited by:

    1. Zhiming Zhao & Lijun Deng, 2020. "Initiation mechanism of Jiweishan high-speed rockslide in Chongqing, 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. 103(3), pages 3765-3781, September.
    2. Baofeng Di & Constantine A. Stamatopoulos & Miranda Dandoulaki & Eleni Stavrogiannopoulou & Meng Zhang & Persefoni Bampina, 2017. "A method predicting the earthquake-induced landslide risk by back analyses of past landslides and its application in the region of the Wenchuan 12/5/2008 earthquake," 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. 85(2), pages 903-927, January.
    3. Atsuko Nonomura & Shuichi Hasegawa & Ryota Kageura & Katsushi Kawato & Tatsuro Chiba & Satoshi Onoda & Ranjan Dahal, 2016. "A method for regionally mapping gravitationally deformed and loosened slopes using helicopter-borne electromagnetic resistivity data," 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. 81(1), pages 123-144, March.
    4. Yu-liang Lin & Wu-ming Leng & Guo-lin Yang & Liang Li & Jun-Sheng Yang, 2015. "Seismic response of embankment slopes with different reinforcing measures in shaking table tests," 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. 76(2), pages 791-810, March.
    5. Atsuko Nonomura & Shuichi Hasegawa & Ryota Kageura & Katsushi Kawato & Tatsuro Chiba & Satoshi Onoda & Ranjan Kumar Dahal, 2016. "A method for regionally mapping gravitationally deformed and loosened slopes using helicopter-borne electromagnetic resistivity data," 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. 81(1), pages 123-144, March.

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