Refine your search
Collections
Co-Authors
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Pandit, Koushik
- Risk Assessment and Stability Analysis of a Recent Landslide at Vishnuprayag on the Rishikesh–Badrinath Highway, Uttarakhand, India
Abstract Views :301 |
PDF Views:90
Authors
Affiliations
1 CSIR-Central Building Research Institute, Roorkee 247 667, IN
1 CSIR-Central Building Research Institute, Roorkee 247 667, IN
Source
Current Science, Vol 114, No 07 (2018), Pagination: 1527-1533Abstract
A massive landslide was triggered on 19 May 2017 at Vishnuprayag near Joshimath, Uttarakhand, India. The landslide blocked the Rishikesh–Badrinath highway and halted traffic for about 24 h till the debris was removed and the road reopened. The Hathi Pahar hill in Vishnuprayag has been a landslide-prone zone because of the presence of loose boulders and large rock blocks on very steep slopes. The site was visited immediately after the landslide and a rapid field assessment of slope stability was carried out. The stability analysis was performed with limited geological and geotechnical data collected from field and laboratory. Based on the two-dimensional finite element analysis, it was inferred that the slope is marginally stable under static load, but fails under seismic loading. The slope could fail in future due to triggering factors such as heavy rainfall, earthquake and anthropogenic activities. This communication presents field observations and the subsequent stability analysis along with possible suggestive control measures.Keywords
Control Measures, Landslides, Risk Assessment, Slope Stability.Full Text
References
- Deshpande, P. K., Patil, J. R., Nainwal, D. C. and Kulkarni, M. B., Landslide hazard zonation mapping in Gopeshwar, Pipalkoti and Nandprayag areas of Uttarakhand. In Proceedings of the Indian Geo-technical Conference, Guntur, 2009.
- Sarkar, S., Kanungo, D. P. and Sharma, S., Landslide hazard assessment in the upper Alaknanda valley of Indian Himalayas. Geomatics, Nat. Hazards Risk, 2015, 6(4), 308–325.
- Sarkar, S., Kanungo, D. P. and Patra, A. K., Landslides in the Alaknanda Valley of Garhwal Himalaya, India. Q. J. Eng. Geol. Hydrol., 2005, 39, 79–42.
- Shukla, D. P., Dubey, C. S., Ningreichon, A. S., Singh, R. P., Mishra, B. K. and Singh, S. K., GIS based morpho-tectonic studies of Alaknanda River Basin: a precursor for hazard zonation. Nat. Hazards, 2014, 20; doi:10.1007/s11069-013-0953-y.
- Griffiths, D. V. and Lane, P. A., Slope stability analysis by finite elements. Geotechnique, 1999, 49(3), 387–403.
- Pandit, K., Sarkar, S., Samanta, M. and Sharma, M., Stability analysis and design of slope reinforcement techniques for a Himalayan landslide. In Proceedings of the International Conference on Recent Advances in Rock Engineering, Bengaluru, 2016; doi:10.2991/rare-16.2016.16.
- Barton, N., The shear strength of rock and rock joints. Int. J. Rock Mech. Min. Sci. Geomech., 1976, 13(9), 255–279.
- Hoek, E., Estimating Mohr–Coulomb friction and cohesion values from the Hoek–Brown failure criterion. Int. J. Rock Mech. Min. Sci. Geomech., 1990, 27(3), 227–229.
- Delhomme, F., Mommessin, M., Mougin, J. P. and Perrotin, P., Behavior of a structurally dissipating rock-shed: experimental analysis and study of punching effects. Int. J. Solids Struct., 2005, 42(14), 4204–4219.