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| Numerical Simulation and Applications of Based on Solid-gas Coupling Model |
| WU Jian-dong |
| Sima Mining Industry Corporation Ltd., Lu'an Group, Lu'an 047105, China |
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Abstract Based on dynamic permeability, porosity, adsorption/desorption and seepage - diffusion and gas leading to coal seam deformation, the gas-solid coupled dynamics model was set up, based on the model, the single layer drilling pump model extracting coal seam gas model of 1206 working face of Sima Mine was set up, effective radius of extraction drilling was simulated, working face gas extraction drill was designed based on numerical analysis result, the result showed that the drainage effect was good, the numerical analysis exerted guidance significance for the working on site.
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