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结合现有放顶煤充填开采技术,在分析现有复杂技术设备系统、减小地表下沉效果不明显、存在诸多安全隐患的基础上,从技术角度论证了煤矿利用专用充填巷进行放顶煤充填开采可有效解决顶板压力过大、井下自然发火、瓦斯粉尘浓度过高等问题,从经济角度提出了该技术适用的2个判别公式,并简要介绍了专用充填巷的布置方案。
Combined with the existing top coal caving mining technology, based on the analysis of the existing complex technical equipment system, the effect of reducing the surface subsidence is not obvious and there are many potential safety hazards, it is demonstrated from the technical point of view that the coal mine uses the dedicated filling lane for caving Filling and mining can effectively solve the roof pressure is too large, the natural spontaneous combustion, gas dust concentration is too high and other issues from the economic point of view of the technology for the two discriminant formula, and a brief introduction to the layout of special filling lane.