Erosion - Deposition in Hooghly Estuary
DOI:
https://doi.org/10.14429/dsj.50.3741Keywords:
Erosion deposition, Sediment transport relationships, Quantum of deposition deposition, Erosion, Ackers White's modeAbstract
An attempt has been made to give an overall idea of erosion-deposition at theBalari-Haldia-Gangra reach of the Hooghly estuary in India. The sediment transport relationships developed by van Rijn and AcKers- White have been tried. Calculation of bed-load transport has beenmade based on'bed material sizes, flow conditions, depth and width of the channels, during 1993-97 Comparison of the results indicates the discrepancies between calculated and observed quantum of deposition/erosion to the extent of 0.6 to 0 :8 times in case ofvan Rijn ' sequation and 0.8 to 1.8 times incase of Ackers-White's model. Results sugges that the Haldia-Balari channel is deteriorating due toaccumulation of sediment.References
van Rijn, L.C. Sediment transport, Part I: Bed-load
transport. J. Hydr. Engg., ASCE, 1984, 110 (10),
-56.
van Rijn, L.C. Sediment transport, Part II: Suspended-Ioad transport. J. Hydr. Engg., ASCE,1984,110(11),1613-41.
White, W .R. & Crabbe, A.D. A comparison of predicted and observed sediment transport rates for some field. and laboratory data. Hydraulic Research Station, Wallingford, England, 1973. 5 p. INT-22.
Ackers, P. & White, W .R. Sediment transport: New approach and analysis. J. Hydr. Engg.,ASCE, 1973, 99 (11), 2041-60.
Ackers, P. & 'White, W. R. Bed-material transport: A theory for total load and its verification. Paper presented at the International Symposium on River Sedimentation, 24-29 March 1980, Beijing, China. pp. 249-68.
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