库底非饱和淤砂层对高拱坝地震反应的影响

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英文篇名：Effect of unsaturated sediment layer on seismic responses of high arch dams 中文刊名：水利水电科技进展 英文刊名：Advances in Science and Technology of Water Resources 作者：王进廷 ; 唐庆 ; 杜修力 英文作者：WANG Jin-ting1 ; TANG Qing2 ; DU Xiu-li2(1.State Key Laboratory of Hydroscience and Engineering ; Tsinghua University ; Beijing 100084 ; China ; 2.Beijing Laboratory of Earthquake Engineering and Structural Retrofit ; Beijing University of Technology ; Beijing 100022 ; China) 中文关键词：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 英文关键词：arch dam-compressible reservoir water-foundation system ; unsaturated sediment ; time-domain explicit finite element ; seismic response 出版日期：2007-04-20 机构：清华大学水沙科学与水利水电工程国家重点实验室(筹),北京工业大学工程抗震与结构诊治实验室,北京工业大学工程抗震与结构诊治实验室 北京100084,北京100022,北京100022 年：2007 期：02 出版单位：水利水电科技进展

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。
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.

引文

[1]杜修力,王进廷.动水压力及其对坝体地震反应影响的研究进展[J].水利学报,2001(7):13-21.
    [2]ZHANG Chu-han,YAN Cheng-da,WANG Guang-lun.Numerical simulation of reservoir sediment and effects on hydro-dynamic response of arch dams[J].Earthquake Engineering andStructure Dynamics,2001,30:1817-1837.
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