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Analysis of Slope Support Effect and Seismic Resistance of Tunnel Opening Section of Hami Pumped Storage Power Station in Northwest China
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Yan-fei ZHANG1, Jian-min REN1, Kun YIN2, Jun-long XIANG2
Water Resources and Power | 2023, 41(1) : 112 - 115
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Water Resources and Power | 2023, 41(1): 112-115
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Analysis of Slope Support Effect and Seismic Resistance of Tunnel Opening Section of Hami Pumped Storage Power Station in Northwest China
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Yan-fei ZHANG1, Jian-min REN1, Kun YIN2, Jun-long XIANG2
Affiliations
  • 1.School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • 2.Sinohydro Bureau 5 Co., LTD., Chengdu 610066, China
Published: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220559
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In order to analyze the dynamic response law of geotechnical slope, support and cavity structure under strong earthquake, taking a cavity section project in northwest China as an example, this paper firstly proposed a comprehensive management plan and then analyzed the management effect by combining field monitoring and FLAC3D numerical simulation. Finally, the effect of support structure and cavern chamber on the dynamic response of rocky soil slope was analyzed under strong seismic load, and some suggestions for seismic protection of cavern section were discussed. The results show that after the treatment, the stability coefficient increases from 1.140 to 1.473, an increase of 29.2%; The imposition of the support structure effectively reduces the acceleration and displacement of the slope and cave roof axis; The presence of the cave chamber has a greater impact on the cave axis compared with the impact of the slope dynamic amplification effect; By analyzing the acceleration of the slope and the tunnel axis vault lining, the maddle is very important for the slope seismic resistance. It is suggested that the seismic protection length of the project should take the range of 3.4 and 4.8 times the diameter of the cave.

cave section  /  geotechnical slopes  /  prestressed anchors  /  dynamic response  /  seismic protection length
Yan-fei ZHANG, Jian-min REN, Kun YIN, Jun-long XIANG. Analysis of Slope Support Effect and Seismic Resistance of Tunnel Opening Section of Hami Pumped Storage Power Station in Northwest China[J]. Water Resources and Power, 2023 , 41 (1) : 112 -115 . DOI: 10.20040/j.cnki.1000-7709.2023.20220559
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Year 2023 volume 41 Issue 1
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220559
  • Receive Date：2022-03-22
  • Online Date：2026-01-28
  • Published：2023-01-25
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  • Received：2022-03-22
  • Revised：2022-04-13
Affiliations
    1.School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
    2.Sinohydro Bureau 5 Co., LTD., Chengdu 610066, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20220559
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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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