【摘要】 利用地质勘探资料结合生产过程中采集的实际数据,系统分析了彬长矿区南缘地质构造发育类型及平面分布特征、含煤地层及基地古地形的发育特点、煤层的时间和空间关系及与矿区构造的配合特征,认为彬长矿区南缘蒋家河井田自三叠系以来经历了3个阶段的构造演化,演化历史与鄂尔多斯盆地构造演化基本同步;主采4~#煤层发育受三叠系基底古地形发育,侏罗系河-湖相沉积环境及区域构造发育等因素的影响,厚煤区位于彬县背斜以南和赵坡向斜的轴部。分析了开采条件,针对开采过程中出现的瓦斯超限、淋水底板鼓起等问题,采取技术措施后可以实现安全开采。更多还原

【Abstract】 Based on the geological exploration data and productive geological data,the development types and distribution characteristics of geological structure,the development characteristics of coal-bearing strata,and the temporal and spatial relations of coal seams in the southern margin of Binchang mining area were systematically analyzed.The study shows that Jiangjiahe minefield in the southern margin of Binchang mining area has undergone three stages of tectonic evolution since Triassic,and its evolution history is basically synchronous with that of Ordos Basin.The development of No.4 coal seam is influenced by Triassic basement paleotopography,Jurassic river-lake sedimentary environment and regional tectonic development.Thick coal area is located in the axis of Binxian anticline and Zhaopo syncline.For the problems of gas overrun and floor heave in the process of mining,safe mining can be achieved by adopting reasonable technical measures.更多还原