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Structural Safety Analysis of Rock-anchored Crane Beam of Underground Powerhouse with High Geostress
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Ming-huan JIANG, Wei-jun CEN, Hui WANG, Yi-fan CAO
Water Resources and Power | 2023, 41(2) : 145 - 149
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Water Resources and Power | 2023, 41(2): 145-149
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Structural Safety Analysis of Rock-anchored Crane Beam of Underground Powerhouse with High Geostress
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Ming-huan JIANG, Wei-jun CEN, Hui WANG, Yi-fan CAO
Affiliations
  • College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20221643
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For underground powerhouse in high geostress area, the excavation of the lower powerhouse cavern after the completion of the pouring of the rock-anchored crane beam may have an adverse impact on the crane beam. Aiming at this problem, three-dimensional elastoplastic finite element method was used to analyze the stress and deformation, the stress of the anchor and the stability of the crane beam of an underground powerhouse during construction and operation period. The results show that in the high geostress field, the rock-anchored crane beam will have large deformation, and the joint surface between the beam and the surrounding rock will have large tensile stress. After the crane beam is poured, the stress and deformation of the beam will increase greatly in three stages. As the excavated part is far away from the beam, the stress and deformation of the beam will become gentle, and the safety factor of the joint surface between the beam and the wall will be large, which can provide a reference for the crane beam pouring and cavern construction in similar projects.

high geostress  /  underground powerhouse  /  rock-anchored crane beam  /  anchor stress  /  FEM  /  safety factor
Ming-huan JIANG, Wei-jun CEN, Hui WANG, Yi-fan CAO. Structural Safety Analysis of Rock-anchored Crane Beam of Underground Powerhouse with High Geostress[J]. Water Resources and Power, 2023 , 41 (2) : 145 -149 . DOI: 10.20040/j.cnki.1000-7709.2023.20221643
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Year 2023 volume 41 Issue 2
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doi: 10.20040/j.cnki.1000-7709.2023.20221643
  • Receive Date：2022-08-10
  • Online Date：2026-01-27
  • Published：2023-02-25
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  • Received：2022-08-10
  • Revised：2022-09-07
Affiliations
    College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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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
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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