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Rock slope stability along road cut of Kulikawn to Saikhamakawn of Aizawl, Mizoram, India

Author

Listed:
  • Sahil Sardana

    (Indian Institute of Technology (Indian School of Mines))

  • A. K. Verma

    (Indian Institute of Technology (Banaras Hindu University))

  • Rahul Verma

    (Pachhunga University College)

  • T. N. Singh

    (Indian Institute of Technology Bombay)

Abstract

Landslide is a natural hazard which carries water, mud, debris and sometimes large boulders. Earthquakes, heavy rainfall and tectonic forces are natural responsible factors for landslides, whereas overpopulation and rapid development in the hilly region are unnatural factors which involve human activities such as construction/maintenance of roads, highways, railways and buildings by the unplanned excavation of rock slopes. Both natural and unnatural factors have been accountable for the increase in the probability of landslides in the past few decades. In the present study, stability analysis of rock slopes has been carried out along Kulikawn to Saikhamakawn road section of Aizawl. Kinematic analysis has been performed to identify the road cut slopes which have the potential to fail, and mainly two types of failures were found, i.e., wedge and topple failure. In order to check the stability of road cut slopes, Geological Strength Index, slope mass rating (SMR) and continuous slope mass rating (CoSMR) have been used in this study. Numerical modelling has also been performed to assess the stability of the road cut slope. The maximum displacement of 0.79 m with a maximum velocity of 0.78 m/s has been found for rock slope at location L1 using numerical modelling which confirms the finding from kinematic analysis, SMR and CoSMR analysis.

Suggested Citation

  • Sahil Sardana & A. K. Verma & Rahul Verma & T. N. Singh, 2019. "Rock slope stability along road cut of Kulikawn to Saikhamakawn of Aizawl, Mizoram, 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. 99(2), pages 753-767, November.
    • Handle: RePEc:spr:nathaz:v:99:y:2019:i:2:d:10.1007_s11069-019-03772-4
    DOI: 10.1007/s11069-019-03772-4
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    References listed on IDEAS

    as
    1. V. Vishal & T. Siddique & Rohan Purohit & Mohit K. Phophliya & S. P. Pradhan, 2017. "Hazard assessment in rockfall-prone Himalayan slopes along National Highway-58, India: rating and simulation," 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(1), pages 487-503, January.
    2. S. P. Pradhan & Vikram Vishal & T. N. Singh, 2018. "Finite element modelling of landslide prone slopes around Rudraprayag and Agastyamuni in Uttarakhand Himalayan terrain," 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 181-200, October.
    3. D. Ramakrishnan & T. Singh & A. Verma & Akshay Gulati & K. Tiwari, 2013. "Soft computing and GIS for landslide susceptibility assessment in Tawaghat area, Kumaon 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. 65(1), pages 315-330, January.
    4. Ashok Kumar Singh & Jagadish Kundu & Kripamoy Sarkar, 2018. "Stability analysis of a recurring soil slope failure along NH-5, Himachal 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. 90(2), pages 863-885, January.
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    Cited by:

    1. Yanlin Li & Aijun Yao & Yifei Gong, 2022. "Deformation and Failure Mechanism of a Massive Ancient Anti-Dip River-Damming Landslide in the Upper Jinsha River," Sustainability, MDPI, vol. 14(20), pages 1-18, October.
    2. Yu Zhou & Wenjun Lv & Zihan Zhou & Qiongqiong Tang & Guansheng Han & Jianshuai Hao & Weiqiang Chen & Faquan Wu, 2023. "New failure criterion for rock slopes with intermittent joints based on energy mutation," 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 407-425, August.

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