Earthquake and Underground Powerhouse: On the Aseismic Issues of Baihetan Underground Cavern Complex
文献类型：会议论文
| 作者 | Leng, Xianlun; Liu, Jiajin; Cui, Zhen; Sheng, Qian |
| 出版日期 | 2012 |
| 会议日期 | OCT 20-21, 2012 |
| 会议地点 | China Three Gorges Univ, Yichang, PEOPLES R CHINA |
| 关键词 | Underground cavern complex The Baihetan hydropower plant Earthquake disaster Seismic stability Supporting measure |
| 卷号 | 594-597 |
| DOI | 10.4028/www.scientific.net/AMR.594-597.1753 |
| 页码 | 1753-1761 |
| 英文摘要 | A hydropower plant is usually the major electricity supplier in the region, the failure of underground powerhouse in an earthquake may cause not only the damage to itself, but also secondary disasters to the region in a way of an electricity outage Seismic stability of these underground complexes is required to be seriously addressed. The underground cavern complex of the Baihetan hydropower plant in Yunnan Province, China, is currently the world's largest underground rock cavern group under construction. Aseismic issues of the underground cavern complex are discussed in this paper. On the basis of this research, seismic variables of the Baihetan project are firstly determined for Design Basis Earthquake and Safety Evaluation Earthquake. The artificial seismic motions for the dynamic analyses are simulated. Two alternative scheme of layout plans of the underground cavern complex are studied, with full 3-D elasto-plastic dynamic response analyses based on the parameters given by the cyclic dynamic loading tests with medium strain rate. The seismic response of seismic displacement and failure zones of each scheme are studied, respectively. A performance verification of the supporting measures during earthquake is also discussed. The results indicate that in spite a wider powerhouse cavern, the scheme "A" which involves a gallery-shaped surge chamber is more stabilized during an earthquake than the scheme "B" whom with barrel-shaped surge chambers. The underground cavern complex with scheme "B" is relatively stable under Design Basis Earthquake and Safety Evaluation Earthquake, despite a minor damage of the surrounding rock. And the implementation of the proposed support system may further guaranteed a safe state of the underground cavern complex in earthquake events. |
| 源文献作者 | Wang, LH ; Xu, G |
| 会议录 | ADVANCES IN INDUSTRIAL AND CIVIL ENGINEERING, PTS 1-4
 |
| 会议录出版者 | TRANS TECH PUBLICATIONS LTD |
| 会议录出版地 | STAFA-ZURICH |
| 语种 | 英语 |
| WOS研究方向 | Engineering |
| WOS记录号 | WOS:000319084401043 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4708]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Leng, Xianlun,Liu, Jiajin,Cui, Zhen,et al. Earthquake and Underground Powerhouse: On the Aseismic Issues of Baihetan Underground Cavern Complex[C]. 见:. China Three Gorges Univ, Yichang, PEOPLES R CHINA. OCT 20-21, 2012. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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