›› 2012, Vol. 33 ›› Issue (3): 767-772.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Fractal characteristics of granularity of loose micaschist and its relation to shear strength parameters

LIANG Wei, LI Ke-gang, HOU Ke-peng, DU Jun   

  1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2010-10-26 Online:2012-03-10 Published:2012-03-12

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Abstract: Based on the laboratory tests, the fractal characteristics of granularity for loose micaschist were studied by the fractal geometry theory; and the relevance of the fractal dimension with coarse granule and shear strength parameters was discussed. The results show that: (1) the change trend of fractal dimension is inversely related to the coarse granulae, that is the fractal dimension will increase with the decrease of coarse granulae; (2) according to the calculations, when the fractal dimension is in the range of 1.887-2.631 the size distribution grading of loose micaschist is good, which indicated that the fractal dimension can take the place of Cu and Cc to represent the size distribution grading of loose rock materials; (3) there is a better relevance between the value of fractal dimension and internal friction angle under the fine grading, and the functional relation of which is negative exponent, but the regularity is not obvious between the cohesive and the fractal dimension.

Key words: fractal characteristics, loose micaschist, fractal dimension, size distribution grading, shear strength parameters

CLC Number: 

  • TU458.3
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