摘要
针对长平矿3#煤层是高瓦斯、低透气性的较难抽采煤层问题.基于3#煤层条件、地质条件及瓦斯条件应用保护层开采理论,确定了3#煤层通过下保护层开采治理瓦斯灾害.通过数值模拟等方法分析了保护层开采对3#煤层的保护效果与煤层透气性变化.根据3#煤层与保护层开采的工程条件提出了3#煤层卸压瓦斯抽采方案,为长平矿3#煤层瓦斯治理提供技术支持.
The 3# coal seam of Changping mine is very difficult to exhausting and mining, which is with high gas and low permeability. Based on 3# coal seam conditions, geological conditions and gas conditions, this paper utilized protective layer mining theory, and identified gas disaster control means of 3# coal seam by mining underside protective seam. The protective effect due to protective layer mining of 3# coal seam was determined by numerical simulation. According to 3# coal seam mining engineering with the protective layer conditions, this paper developed the gas drainage with pressure relief program of 3# coal seam which provided a technology support to 3# coal seam gas control.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2014年第12期1594-1598,共5页
Journal of Liaoning Technical University (Natural Science)
关键词
高瓦斯
低透气性
保护层开采
保护效果
瓦斯抽采
high gas
low permeability
protective layer mining
protective effect
gas drainage
