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Study of a partially failed landslide and delineation of piping phenomena by vertical electrical sounding (VES) in the Wayanad Plateau, Kerala, India

Author

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  • K. Sajinkumar
  • R. Castedo
  • P. Sundarajan
  • V. Rani

Abstract

A partially failed landslide resembling a cascade and which imparted a step-like topography occurred on 7 July 2007 during the south-west monsoon in Erumakolli tea estate near Meppadi in Wayanad district, Kerala. Five steps (towards north) were identified in the area, with the last step being the most devastating. The landslide ruined two houses and damaged several houses. The landslide also caused widespread damage to property. Subsidence and piping also occurred in this area. Development of haphazard ground cracks is common. Vertical electrical sounding was used to identify the subsurface nature of the piping phenomena. A low-resistivity zone (>100 Ω m) was identified and is suspected to be the possible focus of sliding due to oversaturation in rainy seasons. This study aimed at deciphering the piping phenomena and the mechanism of failure through geophysical studies. Copyright Springer Science+Business Media Dordrecht 2015

Suggested Citation

  • K. Sajinkumar & R. Castedo & P. Sundarajan & V. Rani, 2015. "Study of a partially failed landslide and delineation of piping phenomena by vertical electrical sounding (VES) in the Wayanad Plateau, Kerala, 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. 75(1), pages 755-778, January.
    • Handle: RePEc:spr:nathaz:v:75:y:2015:i:1:p:755-778
    DOI: 10.1007/s11069-014-1342-x
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    Citations

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    Cited by:

    1. Rajkumar Andrewwinner & Sembulichampalayam Sennimalai Chandrasekaran, 2021. "Investigation on the Failure Mechanism of Rainfall-Induced Long-Runout Landslide at Upputhode, Kerala State of India," Land, MDPI, vol. 10(11), pages 1-25, November.
    2. K. Sajinkumar, 2015. "Trema orientalis: a suspected indicator plant for palaeo-landslides in tropical 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. 78(3), pages 2169-2174, September.
    3. K. S. Sajinkumar & S. Rinu & T. Oommen & C. L. Vishnu & K. R. Praveen & V. R. Rani & C. Muraleedharan, 2020. "Improved rainfall threshold for landslides in data sparse and diverse geomorphic milieu: a cluster analysis based approach," 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 639-657, August.

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