Investigating the effect of applied shear stress on cohesive riverbank erosion
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Date
2015-10, 2016-02, 2016-03
Authors
Kimiaghalam, Navid
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
NRC Research Press
International Research and Training Centre on Erosion and Sedimentation/ The World Association for Sedimentation and Erosion Research
NRC Research Press
International Research and Training Centre on Erosion and Sedimentation/ The World Association for Sedimentation and Erosion Research
Abstract
Morphological changes along several channels have raised concerns in the Province of Manitoba. This thesis presents a comprehensive study of fluvial morphological processes in open channels. Due to the recent concerns in the Province of Manitoba, the study mainly focused on the Red River in the city of Winnipeg, and two diversion channels in northern Manitoba. Morphodynamic conditions of these channels have become more complicated due to the cohesive nature of the channels bed and bank material and significant effects of subaerial processes. Several field measurement techniques, experimental setups, and numerical models were used to gain a better understanding of these complicated processes within the study reaches. Field measurements include soil sampling, water sampling, hydrometric surveys using an ADCP; the experimental setup includes several standard soil properties tests as well as an erosion measurement test; numerical modelling includes hydrodynamic and thermal modelling to quantify applied shear stress and seasonal freeze-thaw processes. Moreover, the effect of deposition processes on the final geomorphology of the study areas is discussed.
Description
Keywords
Cohesive sediment, Erosion, Deposition, MIKE 21, Fluvial geomorphology, Riverbank
Citation
Kimiaghalam, N., Goharrokhi, M., Clark, S. P., and Ahmari, H., 2015. A comprehensive fluvial geomorphology study of riverbank erosion on the Red River in Winnipeg, Manitoba, Canada. Journal of Hydrology, 529: 1488-1498.
Kimiaghalam, N., Goharrokhi, M., and Clark, S. P., 2016. Estimating cohesive sediment erosion and deposition rates in wide rivers. Canadian Journal of Civil Engineering, 43(2): 164-172.
Kimiaghalam, N., Clark, S.P., and Ahmari, H., 2016. An experimental study on the effects of physical, mechanical, and electrochemical properties of natural cohesive soils on critical shear stress and erosion rate. International Journal of Sediment Research, 31(1):1-15
Kimiaghalam, N., Goharrokhi, M., and Clark, S. P., 2016. Estimating cohesive sediment erosion and deposition rates in wide rivers. Canadian Journal of Civil Engineering, 43(2): 164-172.
Kimiaghalam, N., Clark, S.P., and Ahmari, H., 2016. An experimental study on the effects of physical, mechanical, and electrochemical properties of natural cohesive soils on critical shear stress and erosion rate. International Journal of Sediment Research, 31(1):1-15