PDF
Full
Outline
The compressibility of reservoir water and the influence of reservoir-bottom silt on the seismic response of the structure are taken into account to establish the high arch dam-reservoir water-foundation system model of Jinping-I Arch Dam, and the feasibility of using the acoustic-solid coupling method to simulate the effect of reservoir water on the dam body is verified by comparing it with the dynamic water pressure calculated by the Westergaard method. The absorption of silt deposited at the bottom of the upstream reservoir is simulated by different reflection coefficients of the reservoir bottom set in the model; seismic records that conformed to the hydraulic code response spectrum were selected as input based on the site conditions, and the response values of dynamic water pressure at the arch crown beam of the concrete dam under the action of vertical-incidence earthquakes with different bottom reflection coefficients were analyzed and studied. The results showed that the magnitude of the bottom reflection coefficient has a significant effect on the dynamic water pressure results at the arch crown beam, and the dynamic water pressure results increase with the increase of the reflection coefficient, and the difference of the dynamic water pressure at the heel of the dam with adjacent reflection coefficients becomes larger.
PDF
48
26
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
