| 土石坝料动力试验数据的一种统计公式 |
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| 引用本文： | 迟世春,陈崇茂,张宗亮. 土石坝料动力试验数据的一种统计公式[J]. 水利与建筑工程学报, 2011, 9(6): 5-8,28 |
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| 作者姓名： | 迟世春 陈崇茂 张宗亮 |
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| 作者单位： | 1. 大连理工大学建设工程学部,辽宁大连,116024
2. 中国水电顾问集团昆明勘测设计研究院,云南昆明,650051 |
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| 基金项目： | 国家自然科学基金项目，高等学校博士点基金 |
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| 摘 要： | 坝料动力特性是土石坝动力分析的重要参数。大型土石坝工程一般直接进行坝料动三轴试验，确定动力参数；而中小型工程，则大多采用工程类比法确定。本文在对现有的国内外试验数据进行系统整理与分析的基础上，给出了堆石料、心墙料的等效动剪切模量比和等效阻尼比随动剪应变非线性变化的统一数学表达式。这些公式可用于判定坝料动力试验成果的合理...
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| 关 键 词： | 土石坝 动模量衰减曲线 阻尼比曲线 统计公式 |
A Statistical Formula for Test Data about Dynamic Characteristics of Earth-rock Dam Materials |
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| CHI Shi-chun,CHEN Chong-mao,ZHANG Zong-liang. A Statistical Formula for Test Data about Dynamic Characteristics of Earth-rock Dam Materials[J]. Journal of Water Resources Architectural Engineering, 2011, 9(6): 5-8,28 |
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| Authors: | CHI Shi-chun CHEN Chong-mao ZHANG Zong-liang |
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| Affiliation: | 1.Faculty of Construction Engineering,Dalian University of Technology,Dalian, Liaoning 116024,China; 2.Kunming Investigation and Design Institute,China Hydropower Engineering Consultation Group,Kunming,Yunnan 650051,China) |
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| Abstract: | The dynamic characteristics of dam materials are the important factors for the dynamic analysis during the seis- mic design of embankment dam. For determining the dynamic parameters, the dynamic triaxial test is generally used for large embankment dams, but the engineering analogy method is often used for small and medium projects. Here based on the analyses of test data at home and abroad, the mathematical expressions of equivalent dynamic shear modulus ratio and dynamic damping ratio with dynamic shear strain are established for rockfill materials and core wall materials. The proposed expressions could be used for judging the reasonableness of dynamic test results, they could also be used for the dynamic sensitivity analysis of embankment dams. |
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| Keywords: | earth-rock dam dynamic modulus attenuation curve damping ratio curve statistical formula |
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