Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018)

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Study on the Correlation Between Meso-Structure Fractal Characteristics and Macroscopic Parameters of Two Typical Rocks

Authors
Dongmei Huang, Xikun Chang, Yunliang Tan, Yanchun Yin
Corresponding Author
Dongmei Huang
Available Online October 2018.
DOI
10.2991/coal-18.2018.50How to use a DOI?
Keywords
rock, microstructure, fractal dimension, strength, macroscopic
Abstract

The meso-structure characteristics of rock affect the macroscopic mechanical behaviors such as its fracture form. In this paper, through the uniaxial compression test and electron microscope scanning(SEM) test of two typical rocks of sandstone and limestone, the fractal characteristics of meso-structure and its influence on the macroscopic damage form are analyzed. The quantitative relation between the fractal dimension and the uniaxial compression strength(UCS) and the modulus of elasticity(E) is established. Results showed that the self-similarity of different lithology rock meso-structures is different. With the magnification of the meso-scanning image, the rock meso-structure fractal dimension is constantly changing, and the trend of sandstone and limestone is decreasing first and then increasing, the trend of the increase of limestone with multiple is slower than that in sandstone. There is a good inverse relationship between uniaxial compression strength and fractal dimension, while elastic modulus and fractal dimension have better power correlation.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018)
Series
Advances in Engineering Research
Publication Date
October 2018
ISBN
978-94-6252-570-2
ISSN
2352-5401
DOI
10.2991/coal-18.2018.50How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Dongmei Huang
AU  - Xikun Chang
AU  - Yunliang Tan
AU  - Yanchun Yin
PY  - 2018/10
DA  - 2018/10
TI  - Study on the Correlation Between Meso-Structure Fractal Characteristics and Macroscopic Parameters of Two Typical Rocks
BT  - Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018)
PB  - Atlantis Press
SP  - 274
EP  - 280
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-18.2018.50
DO  - 10.2991/coal-18.2018.50
ID  - Huang2018/10
ER  -