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| 超高心墙堆石坝大型振动台模型试验及数值模拟 | |
| 引用本文： | 袁林娟,刘小生,汪小刚,赵剑明,洪桂标,刘启旺,陈宁.超高心墙堆石坝大型振动台模型试验及数值模拟[J].水力发电学报,2011,30(6). |
| 作者姓名： | 袁林娟 刘小生 汪小刚 赵剑明 洪桂标 刘启旺 陈宁 |
| 作者单位： | 1. 中国水利水电科学研究院,北京100044／中国农业大学,北京100083 2. 中国水利水电科学研究院,北京,100044 3. 浙江省水利水电勘测设计院,杭州,310002 |
| 基金项目： | 水利部公益性行业科研专项经费项目(200801133); 国家十一五科技支撑项目(2009BAK56B02) |
| 摘 要： | 我国西南强震区兴建高坝抗震问题非常突出。振动台模型试验是研究土石坝动力反应和震害机理、验证动力计算方法的有效手段。论文以300m级的双江口超高心墙堆石坝为依托,介绍了大型振动台模型试验,并利用等效线性模型对模型坝进行了数值计算。通过对试验值和计算值的比较,验证了等效线性模型能较好的模拟坝体的动力反应。两种方法均反映出坝体最危险位置在下游坝坡0.75～0.85H处,且空库比满库的地震反应明显偏大。但是,有限元难以准确模拟松散边坡的表面放大效应,可能导致计算结果偏小;且等效线性方法属于非线性粘弹性模型,不能反映先期振动和坝体破坏过程。 |
| 关 键 词： | 振动台模型试验 心墙堆石坝 等效线性法 加速度放大倍数 |
Large-scale shaking table test and numerical analysis of super high core rock-fill dam |
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| YUAN Linjuan,LIU Xiaosheng,WANG Xiaogang,ZHAO Jianming,HONG Guibiao,LIU Qiwang,CHEN Ning.Large-scale shaking table test and numerical analysis of super high core rock-fill dam[J].Journal of Hydroelectric Engineering,2011,30(6). | |
| Authors: | YUAN Linjuan LIU Xiaosheng WANG Xiaogang ZHAO Jianming HONG Guibiao LIU Qiwang CHEN Ning |
| Affiliation: | YUAN Linjuan1,2,LIU Xiaosheng1,WANG Xiaogang1,ZHAO Jianming1,HONG Guibiao3,LIU Qiwang1,CHEN Ning1(1.China Institute of Water Resources and Hydropower Research,Beijing 100044,2.China Agricultural University Beijing 100083,3.Zhejiang Design Institute of Water Conservancy and Hydroelectric Power,Hangzhou 310002) |
| Abstract: | Anti-seismic design for high dam construction in southwest China is a crucial issue.Shaking table test is an effective tool in studies of dynamic response and earthquake damage mechanism and also for verification of dynamic analysis methods.This paper presents the design and measurements of shaking table tests for the Shuangjiangkou super-high core rock-fill dam and an equivalent linear method for simulation of the model dam's dynamic response with a comparison of the measured and simulated data.Results of ... |
| Keywords: | shaking table test core rock-fill dam equivalent linear method acceleration amplification factor |
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