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出 处:《中国矿山工程》2011年第4期47-50,共4页China Mine Engineering
摘 要:通过对沿空留巷围岩活动和矿压显现规律的分析,介绍了谢一矿5121(5)薄煤保护层工作面在回采前、回采后对沿空留巷段进行充填加固支护的设计方案与实施情况。保证了Y型通风顺利实施,以解决上隅角瓦斯集聚,杜绝风巷瓦斯超限事故的发生,实现了薄煤层工作面生产高产高效。Based on the analysis of surrounding rock activities and regularity of strata behaviors of gob-side entry retaining,the specific design plan and implementation conditions for filling,reinforcing and supporting the section of gob-side entry retaining be fore and after stoping of working face of 5125(5) low coal protective layer in Xieyi mine were introduced.The smooth implementa tion of Y-type ventilation system ensured to solve gas accumulation in top corner,to avoid gas ultralimit accident in air gate,and to achieve high yield and high efficiency of production of working face of low coal.
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