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Erosion Mechanism of Dam Lands and Flow Characteristics of Dam-Break Under Warping-Dam-Break Conditions in the Loess Plateau
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Guo-long YIN1, 2, Mao-hua LE3, Jing-song YI1
Water Resources and Power | 2023, 41(9) : 85 - 88
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Water Resources and Power | 2023, 41(9): 85-88
• DAM SAFETY AND MONITORING •
Erosion Mechanism of Dam Lands and Flow Characteristics of Dam-Break Under Warping-Dam-Break Conditions in the Loess Plateau
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Guo-long YIN1, 2, Mao-hua LE3, Jing-song YI1
Affiliations
  • 1.Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China
  • 2.Chengdu Huajian Geological Engineering Technology Co., Ltd., Chengdu 611734, China
  • 3.Department of Sediment Research, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
Published: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20230559
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The study of water-sediment processes and dam-land-erosion mechanisms under warping-dam-break conditions is of great significance for the construction and later management of warping dams in the Loess Plateau. Based on the literature research and field investigation, this paper identified the main causes of dam-land-erosion under warpingdam-break conditions, including the nature of the dam soil, the formation characteristics of the dam and the check dam break mode. It proposed that the process of dam erosions and gully erosions after warping dam failures was as follows: “warping dam failure → retrogressive erosion → scouring and undercutting → collapse of gully walls → mixed flow of water and sand”. Taking the #2 main dam in Macaoli of Lishi District in Lvliang City, Shanxi Province as an example, the numerical calculation results indicate that the water-sand process under the condition of warping dam failures was significantly changed by the siltation of the reservoir areas, and the dam lands have the role of shaving peaks and sinking sands.

warping dam  /  dam-break condition  /  dam-lands erosion  /  dam-break flow
Guo-long YIN, Mao-hua LE, Jing-song YI. Erosion Mechanism of Dam Lands and Flow Characteristics of Dam-Break Under Warping-Dam-Break Conditions in the Loess Plateau[J]. Water Resources and Power, 2023 , 41 (9) : 85 -88 . DOI: 10.20040/j.cnki.1000-7709.2023.20230559
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20230559
  • Receive Date：2023-04-01
  • Online Date：2026-01-28
  • Published：2023-09-25
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History
  • Received：2023-04-01
  • Revised：2023-05-06
Funding
Affiliations
    1.Institute of Exploration Technology, Chinese Academy of Geological Sciences, Chengdu 611734, China
    2.Chengdu Huajian Geological Engineering Technology Co., Ltd., Chengdu 611734, China
    3.Department of Sediment Research, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20230559
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表12种不同金属材料的力学参数
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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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