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Allowable Crack Width of Impervious Panel of Upper Reservoir Rockfill Dam of A Pumped Storage Power Station
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Guo-jie MA1, Sheng ZHU1, Hui-ming WANG2
Water Resources and Power | 2023, 41(2) : 86 - 89
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Water Resources and Power | 2023, 41(2): 86-89
• DAM SAFETY AND MONITORING •
Allowable Crack Width of Impervious Panel of Upper Reservoir Rockfill Dam of A Pumped Storage Power Station
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Guo-jie MA1, Sheng ZHU1, Hui-ming WANG2
Affiliations
  • 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
  • 2.Guangdong Hydropower Planning & Design Institute, Guangzhou 510635, China
Published: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20220721
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Due to the frequent storage and discharge cycle of the reservoir, the cushion of the face rockfill dam of pumped storage power station should have good drainage performance, but when the face slab appears cracks, the cushion with low fine particle content may have the problem of seepage stability. Taking the concrete face rockfill dam of a pumped storage power station as an example, the inverted filtration test and seepage calculation and analysis were carried out, focusing on the filter protection mechanism of cushion material and transition material. The allowable crack width of the face slab was determined according to the damage slope of cushion material. The results show that after properly optimizing the fine particle content of cushion and transition material, the requirements of inverted filtration criterion can be met, and the allowable crack width of the panel is increased by 30% on the premise of ensuring the seepage stability of cushion.

pumped storage power station  /  concrete face rockfill dam  /  filtration  /  seepage stability  /  crack
Guo-jie MA, Sheng ZHU, Hui-ming WANG. Allowable Crack Width of Impervious Panel of Upper Reservoir Rockfill Dam of A Pumped Storage Power Station[J]. Water Resources and Power, 2023 , 41 (2) : 86 -89 . DOI: 10.20040/j.cnki.1000-7709.2023.20220721
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Year 2023 volume 41 Issue 2
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220721
  • Receive Date：2022-04-12
  • Online Date：2026-01-27
  • Published：2023-02-25
Article Data
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History
  • Received：2022-04-12
  • Revised：2022-05-10
Funding
Affiliations
    1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
    2.Guangdong Hydropower Planning & Design Institute, Guangzhou 510635, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20220721
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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