Abstract
The mechanism of riverbank erosion is largely impacted by wide varieties of forces acting on the soil grains as well as some micro-level parameters, e.g. water content index angle, inter-granular distance, wetted surface area and contact angle. All these players make the entire mechanism of extremely complex nature. Here, role of all these parameters has been studied for the determination of escape velocity of the sediments in micro-level. This velocity is indicative of volumetric erosion rate in macro-level. The dominant forces that are considered here are the force of cohesion, pore-pressure force, force due to weight of the sediment grains and hydrostatic force. The already-established “Truncated Pyramid Model (TPM)” has been applied to envisage the micro-structural arrangement of the grains. The quantitative effect of the contact angle on sediment escape velocity for different wetted surface areas has been studied and plotted for different inter-granular distances. The varying contact angle is a measure of impurity of water. The results show the adverse effect of the contact angle on sediment escape velocity and, consequently, the bank erosion.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Odgaard AJ, Mosconi CE (1987) Streambank protection by submerged vanes. J Hydraul Eng ASCE 113(4):520–536
Carroll RWH, Warwick JJ, James AI, Miller JR (2004) Modeling erosion and overbank deposition during extreme floods conditions on carson river Nevada. J Hydrol 297(1–4):1–21
El Kadi AK, Moran AD, Mosselman E, Bouchard JP, Habersack H, Aelbrecht D (2014) A physical, movable-bed model for non-uniform sediment transport, fluvial erosion and bank failure in rivers. J Hydro-Environ Res 8(2):95–114
Mukherjee S, Mazumdar A (2010) Study of effect of the variation of inter-particle distance on the erodibility of a riverbank under cohesion with a new model. J Hydro-Environ Res 4(3):235–242
Darby SE, Thorne CR (1996) Stability analysis for steep, eroding, cohesive riverbanks. J Hydraul Eng 122:443–454
Osman AM, Thorne CR (1988) Riverbank stability analysis, I: theory. J Hydraul Eng 114(2):134–150
Soulie F, El Youssoufi MS, Cherblanc F, Saix C (2006) Capillary cohesion and mechanical strength of polydisperse granular materials. Eur Phys J E 21:349–357
Duan JG (2005) Analytical approach to calculate rate of bank erosion. J Hydraul Eng 131(11):980–990
Poorni S, Miglani R, Srinivasan MR, Indira R (2009) Comparative evaluation of the surface tension and the ph of calcium hydroxide mixed with five different vehicles: an in vitro study. Indian J Dent Res 20(1):17–20
Bakker DP, Klijnstra JW, Busscher HJ, Van der Mei HC (2003) The effect of dissolved organic carbon on bacterial adhesion to conditioning films adsorbed on glass from natural seawater collected during different seasons. Biofouling 19(6):391–397
Mu F, Su X (2007) Analysis of liquid bridge between spherical particles. China Particuol 5:420–424
Likos JW, Lu N (2–5 Jun 2002) Hysteresis of capillary cohesion in unsaturated soils. 15th ASCE Engineering Mechanics Conference. New York, Columbia University, pp 1–8
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Biswas, D., Dutta, A., Mukherjee, S., Mazumdar, A. (2022). Riverbank Erosion for Different Levels of Impurity of Water—A Micro-analysis. In: Rao, C.M., Patra, K.C., Jhajharia, D., Kumari, S. (eds) Advanced Modelling and Innovations in Water Resources Engineering. Lecture Notes in Civil Engineering, vol 176. Springer, Singapore. https://doi.org/10.1007/978-981-16-4629-4_50
Download citation
DOI: https://doi.org/10.1007/978-981-16-4629-4_50
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-16-4628-7
Online ISBN: 978-981-16-4629-4
eBook Packages: EngineeringEngineering (R0)