| 库底非饱和淤砂层对高拱坝地震反应的影响 |
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| 引用本文： | 王进廷,唐庆,杜修力.库底非饱和淤砂层对高拱坝地震反应的影响[J].水利水电科技进展,2007,27(2):22-25. |
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| 作者姓名： | 王进廷 唐庆 杜修力 |
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| 作者单位： | 1. 清华大学水沙科学与水利水电工程国家重点实验室(筹),北京,100084
2. 北京工业大学工程抗震与结构诊治实验室,北京,100022 |
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| 基金项目： | 国家自然科学基金;北京市教委科技发展计划项目 |
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| 摘 要： | 采用时域显式有限元方法,将库底非饱和淤砂层近似模拟为不同于库水的流体介质。以小湾拱坝为例,分析可压缩库水条件下库底非饱和淤砂层对高拱坝地震反应的影响。计算结果表明非饱和淤砂层的存在有可能使得坝体地震响应增加。
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| 关 键 词： | 拱坝-可压缩库水-地基系统 非饱和淤砂层 时域显式有限元 地震反应 |
| 文章编号： | 1006-7647(2007)02-0022-04 |
| 修稿时间： | 2006年3月29日 |
Effect of unsaturated sediment layer on seismic responses of high arch dams |
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| WANG Jin-ting,TANG Qing,DU Xiu-li.Effect of unsaturated sediment layer on seismic responses of high arch dams[J].Advances in Science and Technology of Water Resources,2007,27(2):22-25. |
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| Authors: | WANG Jin-ting TANG Qing DU Xiu-li |
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| Abstract: | With the Xiaowan Arch Dam taken as an example,the unsaturated sediment layer at the bottom of the reservoir was simulated as the fluid medium,which was different from the reservoir water,and the time-domain explicit finite element method was used for analysis of the effect of the unsaturated sediment layer on seismic responses of the dam under the condition of compressible reservoir water.The result shows that the unsaturated sediment layer may lead to the increase of dynamic seismic responses of the dam. |
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| Keywords: | arch dam-compressible reservoir water-foundation system unsaturated sediment time-domain explicit finite element seismic response |
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