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Study on Influence of Water-Rich Fault on the Stability of Surrounding Rock of Underground Cavern During Construction
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Xiao-long LV1, 2, 3, Lai-hong JING1, 2, Yu-jie WANG3, Li-jun ZHAI1, Wan-fu TIAN1
Water Resources and Power | 2023, 41(9) : 125 - 129
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Water Resources and Power | 2023, 41(9): 125-129
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Study on Influence of Water-Rich Fault on the Stability of Surrounding Rock of Underground Cavern During Construction
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Xiao-long LV1, 2, 3, Lai-hong JING1, 2, Yu-jie WANG3, Li-jun ZHAI1, Wan-fu TIAN1
Affiliations
  • 1.Yellow River Engineering Consulting Co. Ltd., Zhengzhou 450003, China
  • 2.Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources (Under Construction), Zhengzhou 450003, China
  • 3.Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research, Beijing 100048, China
Published: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20222343
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During the excavation of the construction adit, the Jiangmen Neutrino Underground Laboratory revealed three long and water rich cracks, and high-pressure jet water gushing appeared in local water exploration holes, which may have adverse effects on the stability of the surrounding rock of the tunnel. The influence of L1, L2, L3 on the deformation of surrounding rock of the experimental hall under different water pressures of the excavation face was systematically analyzed by using the discrete element method. The results show that the influence of water rich long cracks on the overall stability of the arch surrounding rock is small. The arch surrounding rock at L1 and L2 is not sensitive to the change of the drainage conditions of the excavation face. With the increase of the water pressure of the excavation face, the deformation of L3 arch shoulder increases sharply and the trend is not convergent. L2 has little effect on the deformation of the lower pool, and the shallow surrounding rock near L1 and L3 is obviously unloaded. Based on comprehensive analysis, 0.5 MPa is recommended as the control standard for shallow surrounding rock drainage at the excavation face of this project.

high pressure groundwater  /  large crack  /  super-large span  /  surrounding rock deformation  /  Jiangmen Neutrino Observatory
Xiao-long LV, Lai-hong JING, Yu-jie WANG, Li-jun ZHAI, Wan-fu TIAN. Study on Influence of Water-Rich Fault on the Stability of Surrounding Rock of Underground Cavern During Construction[J]. Water Resources and Power, 2023 , 41 (9) : 125 -129 . DOI: 10.20040/j.cnki.1000-7709.2023.20222343
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Year 2023 volume 41 Issue 9
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222343
  • Receive Date：2022-11-01
  • Online Date：2026-01-28
  • Published：2023-09-25
Article Data
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History
  • Received：2022-11-01
  • Revised：2022-11-30
Funding
Affiliations
    1.Yellow River Engineering Consulting Co. Ltd., Zhengzhou 450003, China
    2.Key Laboratory of Water Management and Water Security for Yellow River Basin, Ministry of Water Resources (Under Construction), Zhengzhou 450003, China
    3.Department of Geotechnical Engineering, 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.1000-7709.2023.20222343
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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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