Generalized Deformation Model of Geomedium with Regard to Microstructure and Phase Transitions
Ch. Qi1,2, Fa. Yan2, A. I. Chaneshev3, Ha. Chen1, Xi. Qu1
1Beijing University of Civil Engineering and Architecture, Beijing, 100044 China
2China University of Mining & Technology, Beijing, 100083 China
3Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: Coal-rock sample, coal and rock ratio, acoustic emission, failure characteristics
Abstract
The failure mechanism and acoustic emission are studied in uniaxial loading tests of coal-rock samples at three values of coal/rock ratios. The scope of the analysis includes the stress-time curve, compressive strength, elastic modulus, acoustic emission events and energy counts. The failure characteristics, deformation and acoustic emission of the compound body are analyzed.
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