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薄煤层在我国一些地区占有较大的储量,但是薄煤层因其厚度小,机械化水平较低,严重制约了矿井经济效益。通过研究金达煤矿12502工作面覆岩运动规律和薄煤层矿压显现规律,确定工作面围岩支护技术,采用综合机械化采煤技术,通过对其工作面自然发火机理的研究,制定了具体的防灭火措施,保证了工作面安全高效生产。
Thin coal seams occupy relatively large reserves in some areas of our country, but the thin coal seams seriously restrict the economic benefits of the mines due to their small thickness and low mechanization level. By studying the law of overlying strata movement and the underground pressure law of thin coal seam in 12502 working face of Jinda coal mine, the technology of surrounding rock support in working face is determined. The mechanized coal mining technology is adopted, and the mechanism of spontaneous combustion in its working face is developed. Fire prevention measures to ensure safe and efficient production of face.