Abstract

The secondary flow is an important factor that affects the bank stabilization and morphological evolution in meandering reaches. In order to solve the problem of the bank failure in Upper Jingjiang River, the effect of the secondary flow on the river bank, the soil composition and mechanical properties were comprehensively considered, the Delft3D model and the BSTEM model were used to analyze the bank stability of the Upper Jingjiang River, and the process of bank failure was simulated. The simulation process is divided into two modes considering the secondary flow and not considering the secondary flow, and the results of the two models are compared and analyzed. The results indicated that, in both calculation modes, the bank collapse occurred during the periods of high water level and water level recession. Moreover, considering the secondary flow, the safety factor of the river bank decreases, the total collapse volume increases, and the bank shape after collapse is more in line with the actual situation.

Details

Title
Modeling of the Effects of Secondary Flow on Bank Failure in a Curved Channel
Author
Chun-yan, Deng 1 ; Jun-qiang, Xia 2 ; Yuan, Yuan 3 ; Wang, Min 3 

 River Department, Changjiang River Scientific Research Institute, Wuhan 430010, China; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China phone: 13476119843 
 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China phone: 13476119843 
 River Department, Changjiang River Scientific Research Institute, Wuhan 430010, China 
Publication year
2019
Publication date
Sep 2019
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2557865549
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.