Seismic response analysis of the underground cavern group at the Yingliangbao hydropower station to the 2022 Ms 6.8 Luding earthquake
文献类型：期刊论文
| 作者 | Cao, Shiqi1,2; Zheng, Hong2; Jiang, Quan2; Li, Shaojun2; Xu, Dingping2; Chen, Tao3 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2024 |
| 卷号 | 176页码:13 |
| 关键词 | Luding earthquake Underground cavern Field investigation Numerical simulation Seismic stability |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2023.108317 |
| 英文摘要 | Strong earthquakes can cause damage to underground structures. The Yingliangbao hydropower station, which experienced significant tremors during the 2022 Ms 6.8 Luding earthquake, is located just 10 km from the epicenter. To assess the impact of the earthquake on the stability of the surrounding rock, a combination of field investigation and numerical simulation was conducted. The field investigation revealed displacements ranging from 0 to 6.55 mm in certain areas of the rock, with localized collapses. The numerical simulation showed that the response of the underground cavern rock is closely linked to the acceleration and the frequency of the seismic waves. Displacements and stresses in the rock varied significantly at different seismic wave acceleration. However, there were discrepancies between the numerical calculations and the field monitoring data due to factors such as the neglect of local geological weak surfaces. Despite these differences, the numerical simulation accurately represented the overall response of the site to the earthquake, with the magnitude of the disparities in displacement data being on the millimeter scale. The earthquake also may cause a 2.3 % increase in the size of the plastic zone in the surrounding rock. Additionally, the residual displacement and maximum stress fluctuations in the sidewall of the underground chamber decreased with increasing frequency within a specific range, while the volume of the plastic zone initially decreased and then increased with higher frequencies of the seismic waves. |
| 资助项目 | National Natural Science Foundation of China[51879261] ; S&T program of China Huaneng Group[HNKJ21-HF317] ; Young Top-notch Talent Cultivation Program of Hubei Province |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001115406800001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40032]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zheng, Hong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Sichuan Huaneng Luding Hydropower Corp Ltd, Chengdu 610017, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Shiqi,Zheng, Hong,Jiang, Quan,et al. Seismic response analysis of the underground cavern group at the Yingliangbao hydropower station to the 2022 Ms 6.8 Luding earthquake[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2024,176:13. |
| APA | Cao, Shiqi,Zheng, Hong,Jiang, Quan,Li, Shaojun,Xu, Dingping,&Chen, Tao.(2024).Seismic response analysis of the underground cavern group at the Yingliangbao hydropower station to the 2022 Ms 6.8 Luding earthquake.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,176,13. |
| MLA | Cao, Shiqi,et al."Seismic response analysis of the underground cavern group at the Yingliangbao hydropower station to the 2022 Ms 6.8 Luding earthquake".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 176(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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