L. Jinhui, Wu Nan, Zhu Zhen-de, L. Chunmei, Liu Qi
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Meso-Structure Quantitative Research about Coals Based on the Digital Image Processing Technology
The coals of rich in cracks have low strength, large deformation and difficult to support, obtain triaxial compression test parameters by RMT-150B rock mechanics and concrete mechanical testing machine, the micro-structure of coals damage photos on coals samples fracture obtained by scanning electron microscope observations. Use the fissures information extraction software developed from MATLAB platform. This paper put forward a quantitative research idea to extract fracture morphology and the two-dimensional geometry of the coals micro-structure based on image enhancement and regional growing algorithm. At the same time, make a statistical analysis of coals samples triaxial compression fracture azimuth, width, length and other information. We obtain coals's strength and elastic modulus is lower and the presence of a large number of initial damage, with significant anisotropy and in homogeneity.
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