| 基于分形方法的沥青混合料抗剪性能研究 |
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| 引用本文： | 马新,郭忠印,杨群.基于分形方法的沥青混合料抗剪性能研究[J].重庆交通大学学报(自然科学版),2009,28(5):873-876. |
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| 作者姓名： | 马新 郭忠印 杨群 |
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| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海200092;吉林大学,建设工程学院,吉林,长春,130026
2. 同济大学,道路与交通工程教育部重点实验室,上海200092 |
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| 摘 要： | 分形是研究自然界中大量存在的统计自相似特征的新的理论工具,在描述和评价一些具有层次连续性、不规则性或随机性等特征的现象方面表现出很强的功能。不同级配曲线走向决定沥青混合料具有不同的抗剪性能。以AC-16Ⅰ混合料为例,在规范级配范围选取10种代表性走向,根据分形理论定量计算这10种级配的分形维数,通过三轴试验研究了集料不同分形维数对沥青混合料抗剪性能的影响规律,从抗剪强度的角度给出了丘陵区公路和平原区公路沥青混合料合理的分维值范围。
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| 关 键 词： | 分形方法 沥青路面 抗剪强度 三轴试验 |
Shear Performance of Asphalt Mixtures Based on Fractal Method |
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| MA Xin,GUO Zhong-yin,YANG Qun.Shear Performance of Asphalt Mixtures Based on Fractal Method[J].Journal of Chongqing Jiaotong University,2009,28(5):873-876. |
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| Authors: | MA Xin GUO Zhong-yin YANG Qun |
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| Institution: | MA Xin1,2,GUO Zhong-yin1,YANG Qun1(1.Key Laboratory of Road & Traffic Engineering of Ministry of Education,Tongji University,Shanghai 200092,China,2.School of Construction Engineering,Jilin University,Jilin Changchun 130026,China) |
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| Abstract: | Fractal is a new theoretical tool to study the wide-existence of statistical self-similarity characteristics in the nature and it has a powerful function in describing and evaluating those phenomena which feature in the continuity,irregularity and randomicity of layers.Different shear performance of asphalt mixtures is determined by different gradation curve trend.Taking AC-16 Ⅰ mixtures as an example,10 representative tendencies are selected from gradation specification,and fractal dimensions of these 10 gradations are calculated quantitatively according to fractal theory.The rule of different fractal dimensions influencing the shear performance of asphalt mixtures is studied through the tri-axial test.And the reasonable range of fractal dimensions of highway asphalt mixtures at hill and plain areas is given from the perspective of shear strength. |
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| Keywords: | fractal method asphalt pavement shear strength tri-axial test |
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