Social engineering as shock absorbing mechanism against bank erosion: a study along Bhagirathi river, West Bengal, India

Author(s):  
Aznarul Islam ◽  
Sanat Kumar Guchhait
2017 ◽  
Vol 26 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Anukul Ch Mandal ◽  
Poly Patra ◽  
Raja Majumder ◽  
Debashish Kumar Ghosh ◽  
Gouri Sankar Bhunia
Keyword(s):  

2019 ◽  
Vol 2 (2) ◽  
pp. 62-78
Author(s):  
Sourav Dey ◽  
Sujit Mandal ◽  

Fluvial processes such as bank erosion plays an important role to change the channel stability of the Torsa River in the downstream region. The present study was focused on stream stability assessment of the Torsa River. The study area is situated between the downstream of the Jaldapara Reserve Forest and confluence of Kaljani River. Data of different parameters about 64 bank segments of the Torsa River were prepared using the field work techniques for assessing the stream bank conditions using lateral, vertical and overall reach stability models. The individual results of BEHI and NBS ratings show that out of 64 bank segments only 35 and 19 bank segments classified in higher categories. Overall lateral stability analysis shows that most of the sample bank segments are in an unstable condition. All bank segments are vertically unstable and degrading. Overall reach stability analysis shows widespread instability. BEHI and NBS results are almost similar for most of the bank segments and therefore, BEHI and NBS can be suitable bank erosion hazard predictive models in the study for channel stability analysis.


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