River Bank Stability Assessment Based on Engineering Properties of Soil Around the Majuli Island of Northeast India

International Journal of Civil Engineering
© 2021 by SSRG - IJCE Journal
Volume 8 Issue 10
Year of Publication : 2021
Authors : Swapnali Barman, Mrinal Kumar Dutta
How to Cite?

Swapnali Barman, Mrinal Kumar Dutta, "River Bank Stability Assessment Based on Engineering Properties of Soil Around the Majuli Island of Northeast India," SSRG International Journal of Civil Engineering, vol. 8,  no. 10, pp. 35-42, 2021. Crossref, https://doi.org/10.14445/23488352/IJCE-V8I10P106


Severe bank erosion by river Brahmaputra along the south bank of Majuli island of northeast India, the largest inhabited river island in the world, is a burning issue that needs immediate attention from the scientific community. The present study aims to analyze the bank stability of Majuli along the south bank based on the engineering properties of the bank materials. Vulnerable and stable bank locations were identified based on temporal migration of river Brahmaputra along the bank of Majuli from 1975 to 2018, and soil samples were collected from the field, which was tested to be either silt with low compressibility or silt with medium compressibility types. Considering both saturated and unsaturated conditions of the soils, three distinguished zones, stable, unstable, and at-risk, have been created to analyze the bank stability of the island. The results demonstrated that samples collected from extreme erosion-prone locations fell either in unstable or at-risk zones, and samples collected from less eroded places fell in the stable zone that supports the practical utility of the study. The outcome of the study is expected to be helpful in acquiring elementary information required for riverbank management practices along the bank of Majuli island.


Majuli island, Brahmaputra, Migration, Bank erosion, Bank stability, Critical height


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