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Response of the Riverbed Evolution to Flood Process at A Curved Reach Downstream of Three Gorges Reservoir
Author(s) -
Hua Ge,
Chenglong Deng
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/734/1/012041
Subject(s) - three gorges , flood myth , erosion , channel (broadcasting) , hydrology (agriculture) , geology , water level , sediment , downstream (manufacturing) , environmental science , geomorphology , geotechnical engineering , geography , engineering , operations management , cartography , archaeology , electrical engineering
The flood process has a very important impact on the evolution of the river. Based on the two-dimensional mathematical model of water and sediment, the response of the evolution of a curved reach downstream of the Three Gorges reservoir to different flood processes was calculated and analysed in this paper. The results show that under the premise of the same total amount of flood, when the flood process transits from the thin type to the short and fat type, the erosion amount of the channel increases gradually, but the increase extent of the channel above the beach reduced, resulting in the weakened erosion amount of the high beaches in the river.

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