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Analysis of the seismic response of ultra-high head lock at different water depths under oblique incidence of seismic waves
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Liqiao LIU1, Zhouhong CAO1, 2, Xian LI1, Ying SU1, Zhilan TAN1
Earthquake Engineering and Engineering Dynamics | 2024, 44(2) : 194 - 207
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Earthquake Engineering and Engineering Dynamics | 2024, 44(2): 194-207
Analysis of the seismic response of ultra-high head lock at different water depths under oblique incidence of seismic waves
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Liqiao LIU1, Zhouhong CAO1, 2, Xian LI1, Ying SU1, Zhilan TAN1
Affiliations
  • 1.School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
  • 2.Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
doi: 10.13197/j.eeed.2024.0220
Outline
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The ground vibration input method based on viscous-spring boundary simulates the incidence of plane SV and P waves at different angles, and the acoustic structure coupling method is used to simulate the dynamic water pressure inside the lock chamber to study the seismic response of the lock roof displacement, acceleration and plastic damage in the ultra-high head lock chamber at different water depths. The study shows that when the seismic waves are obliquely incident, the seismic response of the ultra-high head locks varies significantly with the water depth compared to the vertical incidence, and the general degree of seismic response is greater than that of the vertical incidence. Under the same water depth conditions, the peak horizontal relative displacement and peak horizontal acceleration of the top of locks increases with the increases of the incidence angle in most cases. The seismic response of the lock chamber structure of the ultra-high head lock is significantly affected by the variation of the water depth. The area near the general gate wall with relative height of 0.2 is more likely to have serious damage, and when the relative water depth is 0.97, the tensile damage range on the waterfront side of the gate wall reaching serious damage is the largest. It is suggested that the combined effect of oblique incident seismic waves and different water depths within the gate should be considered.

ultra-high head lock  /  oblique incidence of seismic waves  /  relative water depth  /  viscous-spring boundary  /  acoustic structure coupling  /  seismic response
Liqiao LIU, Zhouhong CAO, Xian LI, Ying SU, Zhilan TAN. Analysis of the seismic response of ultra-high head lock at different water depths under oblique incidence of seismic waves[J]. Earthquake Engineering and Engineering Dynamics, 2024 , 44 (2) : 194 -207 . DOI: 10.13197/j.eeed.2024.0220
Year 2024 volume 44 Issue 2
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Article Info
doi: 10.13197/j.eeed.2024.0220
  • Receive Date:2022-12-05
  • Online Date:2026-03-30
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History
  • Received:2022-12-05
  • Revised:2023-03-21
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Affiliations
    1.School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha 410114, China
    2.Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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