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Response Relationship Between Sediment Discharge Ratio with Water Flow and Sediment Factors in Three Gorges Reservoir
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Qian-qian ZHANG1a, 1b, Si-chen TONG1a, 1b, Xiao-ping LONG2, Pin-feng JIANG1a, 1b
Water Resources and Power | 2023, 41(8) : 101 - 104
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Water Resources and Power | 2023, 41(8): 101-104
• DAM SAFETY AND MONITORING •
Response Relationship Between Sediment Discharge Ratio with Water Flow and Sediment Factors in Three Gorges Reservoir
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Qian-qian ZHANG1a, 1b, Si-chen TONG1a, 1b, Xiao-ping LONG2, Pin-feng JIANG1a, 1b
Affiliations
  • 1a.School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
  • 1b.National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China
  • 2.Yangtze Ecology and Environment Co., Ltd., Wuhan 430062, China
Published: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20222135
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In order to study the response relationship between sediment discharge ratio (SDR) and influencing factors under actual water and sediment conditions, based on the measured water and sediment data of the Three Gorges Reservoir (TGR) from 2003 to 2018, this paper discussed the response relationship between SDR and various influencing factors on the basis of analyzing the characteristics of water and sediment from the reservoir, and established the formula of SDR in the main flood season. The results show that the correlation between SDR and single factor is not obvious, indicating that the SDR is affected by multiple factors. From the perspective of reservoir operation and regulation, the SDR is negatively related to the flood detention time, and the sediment discharge efficiency should be improved by shortening the flood detention time; From the perspective of incoming water and sediment, the greater the amount of sediment entering the reservoir, the greater the sediment discharge ratio of fine sediment is; Coarse sediment, on the contrary, is characterized by more coming and less discharging. In the main flood season, the relationship between the SDR and the proposed expression is good. This study can provide reference for the operation of TGR.

Three Gorges Reservoir  /  sediment deposition  /  sediment discharge ratio  /  influencing factors
Qian-qian ZHANG, Si-chen TONG, Xiao-ping LONG, Pin-feng JIANG. Response Relationship Between Sediment Discharge Ratio with Water Flow and Sediment Factors in Three Gorges Reservoir[J]. Water Resources and Power, 2023 , 41 (8) : 101 -104 . DOI: 10.20040/j.cnki.1000-7709.2023.20222135
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222135
  • Receive Date：2022-10-14
  • Online Date：2026-01-28
  • Published：2023-08-25
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History
  • Received：2022-10-14
  • Revised：2022-11-05
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Affiliations
    1a.School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
    1b.National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China
    2.Yangtze Ecology and Environment Co., Ltd., Wuhan 430062, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20222135
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表12种不同金属材料的力学参数
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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