太钢三交矿井开采保护层方案和效果预测

Mining Protective Coal Seam Scheme and Effect Forecast in Sanjiaohe Mine of Taiyuan Iron and Steel Complex

开采保护层是预防煤与瓦斯突出最有效、最经济的区域性防突措施,也是实现"高瓦斯矿井在低瓦斯状态下"生产的主要瓦斯治理措施之一。根据实际情况提出,太钢三交矿井实施开采保护层(2#煤层)工程、解放主采煤层(4#、5#煤层)的方案。开采保护层将给矿井带来良好的社会效益和经济效益。

Mining protective coal seam is the most effective, the most economical and regional preventing coal and gas outburst measure, is also one of measures of main gas control which realizes production in ＂the high gaseous mine under the low gas condition＂. According to the actual situation puts forward in Sanjiaohe mine of Taiyuan iron and steel complex implements the plan mining coal seam （4^#, 5^# coal seam）. conomic efficiency to the mine. of mining protective coal seam （ the 2^# coal seam） project, liberates the main mining protective coal seam will bring the good social efficiency and the economic efficiency to the mine.