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RESEARCH ON MULTI-SCALE PREDICTION OF
COAL AND GAS OUTBURST |
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Abstract The fractal feature of geological structure and the relation between fractal dimension of structure and danger extent of gas outburst are analyzed in three scales of coal field，mining area and stope，respectively. It is shown that geological structures are of fractal features，and there is a positive correlation between fractal dimension of structure and danger extent of gas outburst over the three scales. The results indicate that multi-scale assessment of outburst tendency of coal and gas can be made based on fractal measurements independently or supplemented by other assessing methods.
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Received: 18 November 2002
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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