| 土石坝的动态反应：离心机模型试验与数值模拟 |
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| 引用本文： | 吴俊贤,倪至宽,高汉棪.土石坝的动态反应：离心机模型试验与数值模拟[J].岩石力学与工程学报,2007,26(1):1-14. |
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| 作者姓名： | 吴俊贤 倪至宽 高汉棪 |
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| 作者单位： | 1. 台北科技大学,土木与防灾所,台湾,台北
2. 美国科罗拉多大学,环境与建筑工程所,美国,博得,80309 |
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| 基金项目： | 致谢 感谢台湾省自来水公司提供的诸多协助以及研究经费的资助,使本研究顺利完成! |
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| 摘 要： | 为评估LIQCA程序是否能合理分析台湾仁义潭土石坝在地震时的反应,进行3个土石坝离心机模型试验,并对相同的土石坝与振动历时进行LIQCA动态数值分析。通过动态数值分析与离心机模型试验结果,探讨土石坝受震时超孔隙水压力的激增以及土体加速度在坝体不同填土区的变化,并评估LIQCA程序耦合在仿真土石坝受震时的可靠性。
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| 关 键 词： | 数值模拟 土石坝 地震 离心机模型 动态数值分析 |
| 文章编号： | 1000-6915（2007）01-0001-14 |
| 收稿时间： | 2006-02-14 |
| 修稿时间： | 2006-02-142006-05-05 |
SEISMIC REACTION OF EARTH AND ROCKFILL DAM: CENTRIFUGE MODELING TEST AND NUMERICAL SIMULATION |
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| WU Chunhsien,NI Chinkuan,KO Honyim.SEISMIC REACTION OF EARTH AND ROCKFILL DAM: CENTRIFUGE MODELING TEST AND NUMERICAL SIMULATION[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(1):1-14. |
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| Authors: | WU Chunhsien NI Chinkuan KO Honyim |
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| Affiliation: | 1.Department of Civil Engineering,Taipei University of Technology,Taipei,Taiwan,China;2.Department of Civil,Environmental,and Architectural Engineering,University of Colorado,Boulder 80309,USA |
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| Abstract: | The numerical analysis results from LIQCA are compared with the centrifugal testing results;and the response of earth and rockfill dam during seismic load is also studied.In general,the acceleration is amplified from the base of foundation to the top of earth and rockfill dam;and the predominant period and band width of soil acceleration are almost the same along the depth.The excessive pore water pressure is accumulated during the base shaking;and the final excessive pore water pressure increases with depth.This fact can also be explained by the stress path analysis from conventional cyclic triaxial testing result and LIQCA analytical results. |
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| Keywords: | numerical simulation earth and rockfill dam earthquake centrifuge modelling test seismic numerical analysis |
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