Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels
The change of water and sediment conditions in wandering channels has a great impact on the stability of river regime. The quantitative relationship between them is still unclear. The qualitative influence of water and sediment conditions on the river regime stability was analyzed by a model test. T...
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MDPI AG
2021-12-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/24/3610 |
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| author | Linjuan Xu Lianjun Zhao Enhui Jiang Junhua Li Meng Chen |
| author_facet | Linjuan Xu Lianjun Zhao Enhui Jiang Junhua Li Meng Chen |
| author_sort | Linjuan Xu |
| collection | DOAJ |
| description | The change of water and sediment conditions in wandering channels has a great impact on the stability of river regime. The quantitative relationship between them is still unclear. The qualitative influence of water and sediment conditions on the river regime stability was analyzed by a model test. The response relationship between the upward or downward moving distance of the main stream zone and water and sediment conditions was quantitatively studied by using the measured water and sediment data and large-section data over the years. The results showed that when the upstream water and sediment inflow conditions change, the stability of a wandering channel with relatively stable river regime under the control of finite boundary will still change. When the river channel is at 1000 m<sup>3</sup>/s under the action of long-term small water, or silting thickness is about 0.53 m, the main stream next to the project moves upwards about 1170 m along the way. In the case of a large flood, such as 8000 m<sup>3</sup>/s, or scouring depth is about 0.39 m, the main stream next to the project moves downwards about 870 m along the way. The study provides a certain scientific basis for river regime stability and river flood control early warning, and provides a certain method reference for quantitative study of river regime evolution of other rivers at home and abroad. |
| first_indexed | 2024-03-10T03:53:13Z |
| format | Article |
| id | doaj.art-6d36980e8d84475f8d799bc00d125f4d |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T03:53:13Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-6d36980e8d84475f8d799bc00d125f4d2023-11-23T11:01:42ZengMDPI AGWater2073-44412021-12-011324361010.3390/w13243610Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering ChannelsLinjuan Xu0Lianjun Zhao1Enhui Jiang2Junhua Li3Meng Chen4Yellow River Institute of Hydraulic Research, YRCC, Zhengzhou 450003, ChinaYellow River Institute of Hydraulic Research, YRCC, Zhengzhou 450003, ChinaYellow River Institute of Hydraulic Research, YRCC, Zhengzhou 450003, ChinaYellow River Institute of Hydraulic Research, YRCC, Zhengzhou 450003, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaThe change of water and sediment conditions in wandering channels has a great impact on the stability of river regime. The quantitative relationship between them is still unclear. The qualitative influence of water and sediment conditions on the river regime stability was analyzed by a model test. The response relationship between the upward or downward moving distance of the main stream zone and water and sediment conditions was quantitatively studied by using the measured water and sediment data and large-section data over the years. The results showed that when the upstream water and sediment inflow conditions change, the stability of a wandering channel with relatively stable river regime under the control of finite boundary will still change. When the river channel is at 1000 m<sup>3</sup>/s under the action of long-term small water, or silting thickness is about 0.53 m, the main stream next to the project moves upwards about 1170 m along the way. In the case of a large flood, such as 8000 m<sup>3</sup>/s, or scouring depth is about 0.39 m, the main stream next to the project moves downwards about 870 m along the way. The study provides a certain scientific basis for river regime stability and river flood control early warning, and provides a certain method reference for quantitative study of river regime evolution of other rivers at home and abroad.https://www.mdpi.com/2073-4441/13/24/3610upward or downward moving distance of main stream zonewater and sediment conditionschannel scouring and siltingwandering channellower Yellow River |
| spellingShingle | Linjuan Xu Lianjun Zhao Enhui Jiang Junhua Li Meng Chen Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels Water upward or downward moving distance of main stream zone water and sediment conditions channel scouring and silting wandering channel lower Yellow River |
| title | Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels |
| title_full | Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels |
| title_fullStr | Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels |
| title_full_unstemmed | Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels |
| title_short | Response Relationship between the Upward or Downward Moving Distance of Main Stream Zone and Water and Sediment Conditions in Wandering Channels |
| title_sort | response relationship between the upward or downward moving distance of main stream zone and water and sediment conditions in wandering channels |
| topic | upward or downward moving distance of main stream zone water and sediment conditions channel scouring and silting wandering channel lower Yellow River |
| url | https://www.mdpi.com/2073-4441/13/24/3610 |
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