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工程科学与技术:2008,40(5):58-62
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库底淤泥层对拱坝地震动水压力的抑制效应研究
(1.四川大学 水利水电学院,四川 成都 610065;2.四川大学 建筑与环境学院,四川 成都 610065)
Research on Depression Effect of Silt Stratification for Hydrodynamic Pressure from Seismic Response of Dam
(1.School of Water Resource and Hydropower, Sichuan Univ., Chengdu 610065, China;2.School of Architecture and Environment, Sichuan Univ., Chengdu 610065, China)
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投稿时间:2008-03-03    修订日期:2008-04-28
中文摘要: 以压力波理论为出发点,结合数值配点分析法,对拱坝坝面动水压力随淤泥层厚度、库底边界反射条件、库底基岩性质变化而产生的影响效应问题进行了研究。结果表明:淤泥层对大坝坝面动水压力有较好的抑制效应,可一定程度减缓地震对大坝工程的影响,库底边界吸收性亦可降低坝面动水压力峰值。
中文关键词: 淤泥层  抑制效应  动水压力  大坝抗震  
Abstract:Based on the theory of pressure wave, analysis of Numerical Fitting-point has been applied to study the effect of hydrodynamic pressure from silt depth, reflection boundary and bedrock feature for arch dam. It showed that silt stratification may produce explicit depression effect on hydrodynamic pressure of dam surface and decrease the seismic motion at some extend, absorbability effect of submarine boundary can too reduce the peak value of hydrodynamic pressure of dam surface.
文章编号:200800031     中图分类号:    文献标志码:
基金项目:国家基础研究重大项目基金
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引用文本:
张帆,唐天国,李弋.库底淤泥层对拱坝地震动水压力的抑制效应研究[J].工程科学与技术,2008,40(5):58-62.
张帆,唐天国,李弋.Research on Depression Effect of Silt Stratification for Hydrodynamic Pressure from Seismic Response of Dam[J].Advanced Engineering Sciences,2008,40(5):58-62.