| 南京下蜀黄土颗粒分形研究 |
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| 引用本文： | 乔春元,韩爱民,丁长阳.南京下蜀黄土颗粒分形研究[J].四川地质学报,2009,29(3):344-348. |
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| 作者姓名： | 乔春元 韩爱民 丁长阳 |
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| 作者单位： | 南京工业大学,土木工程学院,南京,210009 |
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| 摘 要： | 根据分形理论,研究了南京下蜀黄土粒度分形结构特征,发现在双对数坐标下粒径和粒度含量之间存在明显的线性关系,表明粒度组成具有分形结构。通过对下蜀黄土颗粒分形的计算,结果显示颗粒分维值随着粘粒含量的增大而增大,且与不均匀系数和曲率系数有良好的非线性关系。在此基础上,讨论了粒度分维所具有的工程地质意义。最后指出粒度分维体现了土体工程地质性质的本质,可以考虑作为土体分类的一个合理指标。
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| 关 键 词： | 下蜀黄土 粒度特征 分形维数 南京 |
A Study of Fractal Structure of Granularity of Xiashu Loess in Nanjing |
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| QIAO Chun-yuan,HAN Ai-min,DING Chang-yang.A Study of Fractal Structure of Granularity of Xiashu Loess in Nanjing[J].Acta Geologica Sichuan,2009,29(3):344-348. |
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| Authors: | QIAO Chun-yuan HAN Ai-min DING Chang-yang |
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| Institution: | College of Civil Engineering;Nanjing University of Technology;Nanjing 210009 |
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| Abstract: | The granularity characteristics of Xiashu loess in Nanjing are studied according to the theory of fractal geometry.The results indicate that there is a linear relationship between the accumulative granularity content and the grain size in the log-log plot which shows the granularity characterized by the fractal structure.Calculation of the fractal dimension of the Xiashu loess shows that fractal dimension increases with clay content,and there is an obvious nonlinear relationship between fractal dimension an... |
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| Keywords: | Xiashu loess granularity characteristics fractal dimension Nanjing |
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