Fractal Features of Cracked Backfill Particle Size Distribution

Abstract:

Based on the taking sample by geological drilling, combined with the fractal principle, analysis on the cracked backfill particle size of its fractal features and strength correlation. Even each backfill sand specimen particle size is difference, but calculation data shows that the particle size of each sand specimen has preferable fractal feature, the sand specimen particle size distribution has remarkable fractal structure by the linear fitted results of the sand specimens. The fractal relationship of strength and particle size distribution shows that with the increased of fractal dimension, the strength of backfill is decreased, that is to say there is negative correlation, the main cause is that the higher parameter D of the fractal dimension, the higher fine-grained content and more non-uniform of the particle size distribution, especially for the thinner full tailings, if properly increasing the content of slightly crude particles, the strength of backfill will be certainly improved to some extent.

• Periodical: Advanced Materials Research (Volumes 588-589)
• Pages: 1894-1898
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.588-589.1894
• Online since: November 2012
• Authors: Yong Jian Zhu, Dai Qiang Deng, Ping Wang
• Keywords: Backfill, Cracked Particulate, Fractal Dimension, Fractal Features, Particle Size Distribution

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