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Numerical Simulation of Gas Drainage with Boreholes in Goaf

机译:采空区带钻孔瓦斯抽采的数值模拟

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Based on numerical simulation of CFD and visual display technology, this paper analyses the gas drainage problem of the goaf in Qinan mine. The gas collection course in the falling porous media of heterogeneous at the upper corner of goaf was theoretically the gas collection, showing immediately the mechanics of porous flow principle of the flow pattern in the goaf and the gas distribution movement when the gas is being drained. The method of longdrill of gas suction in the fracture areas, which can stop the flowing of the gas to the upper comers, properly solved the technical problem of gas suction in soft coal beds.
机译:基于CFD数值模拟和可视化显示技术,对祁南矿区采空区瓦斯抽放问题进行了分析。理论上,采空区上角非均质的下降多孔介质中的气体收集过程是气体收集,它立即显示了采空区中流动模式的多孔流动原理和排放气体时的气体分布运动。裂缝区抽气的长钻法可以阻止瓦斯向上拐角的流动,妥善解决了软煤层瓦斯抽采的技术难题。

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