›› 2007, Vol. 28 ›› Issue (S1): 231-235.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Mathematical model and numerical simulation of hyposmosis coal bed gas-water fluid and solid coupling

DI Jun-zhen1, LIU Jian-jun2, YIN Zhi-xiang3   

  1. 1.Civil Engineering College of Liaoning Technical University, Fuxin 123000, China; 2. Institute of Poromechanics, Wuhan Polytechnic University, Wuhan 430023, China; 3.Experimentation Center of Liaoning Technical University, Fuxin 123000, China
  • Received:2007-05-11 Online:2007-10-25 Published:2014-03-28

Abstract: Based on effective stress theory, combining elastoplasticity geometry equation,constitutive equations and balance equation, stress field equation is established. By mass conservation equation of hydromechanics seepage flow field equation of coal bed gas, water and coal rock soild grain is established. These equations, secondary equations and fix solution condition form mathematical model of coal bed gas-water fluid soild coupling under stress. Using predigesting model to analyze single phase fluid soild coupling, distributing curve of pressure dynamic is obtained, effect of pressure distributing in coupling and non-coupling,so privide theory base for analysis of coal bed gas fluid solid coupling is analyzed.

Key words: hyposmosis, fluid and solid coupling, stress field, seepage field

CLC Number: 

  • TD 845
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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