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Rocky, W. S.
- Landslide Susceptibility along NH-39 between Karong and Mao, Senapati District, Manipur
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Authors
Affiliations
1 Geological Survey of India, North Eastern Region, Shillong - 793 003, IN
1 Geological Survey of India, North Eastern Region, Shillong - 793 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 78, No 6 (2011), Pagination: 559-570Abstract
National Highway-39 is the only lifeline of the state of Manipur. The sector between Karong and Mao is highly landslide prone and frequently blocked the NH-39. The area is represented by Disang and Barail Groups of rock. Considering the importance of NH-39, landslide susceptibility zonation studies along NH-39 between Karong and Mao were carried out following GSI guideline, a modified form of BIS (1998).
Landslide susceptibility zonation map reveals that 57% of the facets belong to low susceptible zone. It is followed by moderate susceptible zone (33%), high susceptible zone (9%) and very low susceptible zone (1%). All the facets of high susceptible zone are concentrated along the road section of NH-39, especially Maram-Mao sector. The landslide susceptibility zonation map gives an overall picture of the stability condition of the hill slopes so it can be used as a base map for planning any developmental scheme or maintenance of the existing one.
Keywords
Landslide, Landslide Susceptibilty Zonation, Macro Scale Landslide Hazard Zonation, GSI Guidelines.
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