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- W2372801062 abstract "The unstable numerical model of spontaneous combustion in goaf is established, based on the seepage equation of leaking wind and the equation of gas seepage-diffusion-oxygen consumption. Supposing the goaf is homogenous, the consumption of oxygen is taken into account from the following aspects: the oxidizing of coal gangue and the outburst of methane. The model is resolved according to the simultaneous equation of numerical method finite element. The velocity of oxygen consumption, the out bursting intensity of methane and coefficient of permeability were obtained by fitting and inversing the on-site data from the Yang Cao-gou. The three girdles-cooling girdle, spontaneous combustion girdle, as phyxia girdle in goaf when blasting coal caving face was applied were pertained by definitive model, pointing out the spontaneous combustion place is where the unilateral entering wind in the heterogeneous goaf because of disequilibrium caving compaction. Furthermore, the quantizing relative between parameter of work face and spontaneous combustion was discussed, the paths and methods for the precaution of spontaneous combustion in goaf were given at the same time." @default.
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- W2372801062 date "2006-01-01" @default.
- W2372801062 modified "2023-09-26" @default.
- W2372801062 title "Numerical simulation on the spontaneous combustion prevention in goaf of blasting coal caving face" @default.
- W2372801062 hasPublicationYear "2006" @default.
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