摘要

To study the characteristics of three-phase foam seepage in goaf, with computational fluid dynamics theory, constructed the mathematical model of three-phase foam seepage in goaf. The process of three-phase foam seepage in fully mechanized caving face goaf was simulated, gained the theoretical values of three-phase foam';s flow scope and analyzed its influencing factors. Research shows that stack height of three-phase foam seepage in goaf is 3.62 m, and the highest point located in upside of pipe outlet. The covering width in strike direction is 36.9 m; stack height and covering width of three-phase foam are seriously influenced by dip of working face and flow volume of three-phase foam.

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