[1]刘建勋,李波..基于级配分形的SUPERPAVE混合料设计参数预估[J].郑州大学学报(工学版),2010,31(01):29.[doi:10.3969/j.issn.1671-6833.2010.01.007]
　LIU Jianxun,Li Bo.ESTIMATION OF SUPERPAVE MIXTURE DESIGN PARAMETERS BASED ON GRADED FRACTALS[J].Journal of Zhengzhou University (Engineering Science),2010,31(01):29.[doi:10.3969/j.issn.1671-6833.2010.01.007]

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基于级配分形的SUPERPAVE混合料设计参数预估()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

31卷

期数:

2010年01期

页码:

29

栏目:

出版日期:

2010-01-30

文章信息/Info

Title:

ESTIMATION OF SUPERPAVE MIXTURE DESIGN PARAMETERS BASED ON GRADED FRACTALS

作者:

刘建勋; 李波.

长安大学公路学院,陕西,西安,710064;甘肃路桥建设集团有限公司,甘肃,兰州,730030

Author(s):

LIU Jianxun; Li Bo

DOI:

10.3969/j.issn.1671-6833.2010.01.007

文献标志码:

A

摘要:

基于分形几何理论,推导出矿料的分形分布模型;以SUPERPAVE-19为例,计算了矿料级配分维值,并通过沥青混合料设计参数的测试,研究了分形维数与混合料设计参数的关系,在此基础上对SUPERPAVE混合料设计参数进行了预估.结果表明:SUPERPAVE混合料矿料级配亦具有明显的分形特征:分维值D与矿料间隙率、沥青饱和度、初始压实度和沥青用量等设计参数有很好的线性相关性.利用矿料级配分形规律,可对具有不同分维值D的SUPERPAVE混合料的体积参数进行预估,使混合料的配合比设计更具针对性.

Abstract:

Based on fractal geometry theory, the fractal distribution model of ore material is derived. Taking SUPERPAVE-19 as an example, the gradation dimension of ore is calculated, and the relationship between fractal dimension and mixture design parameters is studied through the test of asphalt mixture design parameters, and the design parameters of SUPERPAVE mixture are estimated on this basis. THE RESULTS SHOW THAT THE SUPERPAVE MIXTURE ORE GRADATION ALSO HAS OBVIOUS FRACTAL CHARACTERISTICS: THE FRACTIONAL DIMENSION D HAS A GOOD LINEAR CORRELATION WITH THE DESIGN PARAMETERS SUCH AS ORE GAP RATE, ASPHALT SATURATION, INITIAL COMPACTION DEGREE AND ASPHALT DOSAGE. USING THE FRACTAL LAW OF ORE GRADATION, THE VOLUME PARAMETERS OF SUPERPAVE MIXTURES WITH DIFFERENT DIMENSIONAL VALUES D CAN BE ESTIMATED, SO THAT THE MIXING RATIO DESIGN OF MIXTURES IS MORE TARGETED.

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