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Structural Safety Analysis and Design Method for Different Types of Tunnel Plug of Large Diversion Tunnel
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Shuang-hong YAN1, Lian ZHANG2, Zu-fang QI1, Jin-peng CUI1, Yu-ting ZHANG2
Water Resources and Power | 2023, 41(6) : 119 - 122
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Water Resources and Power | 2023, 41(6): 119-122
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Structural Safety Analysis and Design Method for Different Types of Tunnel Plug of Large Diversion Tunnel
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Shuang-hong YAN1, Lian ZHANG2, Zu-fang QI1, Jin-peng CUI1, Yu-ting ZHANG2
Affiliations
  • 1.Changjiang Institute of Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, China
  • 2.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China
Published: 2023-06-25 doi: 10.20040/j.cnki.1000-7709.2023.20222502
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The diversion tunnel plug is a key project for the safety of water conservancy and hydropower projects. Wedge-shaped plugs are widely used in engineering. There are many calculation methods for columnar plug, but not so much for the wedge-shaped plug. Based on the design scheme of the diversion tunnel plug in Karot power station, this paper carried out the theoretical and numerical simulation analysis. Through the force analysis of the wedge, the calculation method of the hydraulic pressure bearing capacity of the wedge-shaped plug was proposed. The comparative analysis of wedge and columnar plug safety was carried out by three-dimensional elastoplastic numerical simulation. The result shows that the maximum deformation under the calibration water level of the wedge-shaped plug was 0.8 mm, and its overload safety factor was 1.08 times that of the columnar plug. By comparing the numerical simulation with the formula calculation results, the rationality and accuracy of the calculation method for the bearing capacity of the wedge-shaped plug were verified. The research results have important guiding value for the design of wedge-shaped block.

diversion tunnel  /  tunnel plug  /  wedge-shaped plug  /  columnar plug  /  numerical simulation
Shuang-hong YAN, Lian ZHANG, Zu-fang QI, Jin-peng CUI, Yu-ting ZHANG. Structural Safety Analysis and Design Method for Different Types of Tunnel Plug of Large Diversion Tunnel[J]. Water Resources and Power, 2023 , 41 (6) : 119 -122 . DOI: 10.20040/j.cnki.1000-7709.2023.20222502
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222502
  • Receive Date：2022-11-30
  • Online Date：2026-01-28
  • Published：2023-06-25
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History
  • Received：2022-11-30
  • Revised：2023-01-03
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Affiliations
    1.Changjiang Institute of Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, China
    2.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20222502
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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
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Genus		 种数
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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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