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DING Ji-hui, MA Yu-peng, ZHAO Guo-jing, LU Wen, GUO Da-qun. INSTABILITY THEORY AND NUMERICAL ANALYSIS OF SOLID-FLUID COUPLING ON COAL─METIIANE OUTBURST[J]. Engineering Mechanics, 1999, 16(4): 47-53.
Citation: DING Ji-hui, MA Yu-peng, ZHAO Guo-jing, LU Wen, GUO Da-qun. INSTABILITY THEORY AND NUMERICAL ANALYSIS OF SOLID-FLUID COUPLING ON COAL─METIIANE OUTBURST[J]. Engineering Mechanics, 1999, 16(4): 47-53.
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INSTABILITY THEORY AND NUMERICAL ANALYSIS OF SOLID-FLUID COUPLING ON COAL─METIIANE OUTBURST

  • Agriculture University of Heibei, Baoding 071001;2. Central Institution of Geotechnic Investigation, Baoding 071001;3. University of Mine &, Industry of China, Beijing 100083;4. Aviation Colleg of Air Force, Banding 071001

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  • Received Date: October 31, 1997
  • Revised Date: December 31, 1899
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  • Based on the theory of multi-phase media continuum mechanics, the coupling instability theory of coal-methane outburst is proposed under finite deformation. From Second Laws of Thermodynamics, mathematical model of coal-methane for coupling instability of solidfluid biphase media is established by using two-order work minimum principle as a criterion for occurrence of outburst. The nonlinear finite element equations are presented. Numerical simulation of a typical outburst is made.
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