彬长矿区蒋家河煤矿地质控煤特征及开采条件

利用地质勘探资料和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、含煤地层及基底古地形的发育特点、煤层的时间和空间特点及矿区构造特征。研究认为：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号煤层受三叠系基底古地形、侏罗系河-湖相沉积环境及区域构造等因素影响，厚煤区位于彬县背斜以南和赵坡向斜的轴部；彬长矿区南缘主采的4号煤层资源丰富、煤质优良、开采条件良好，具有很好的开采价值和经济效益，针对瓦斯超限、淋水底板鼓起等问题，采取措施后可以实现安全开采。

Analysis of the characteristics of geological control on coal and mining conditions of Jiangjiahe coal mine in Binchang mining area

This paper is based on the geological exploration data and the actual data collected in the production process, analyzed systematically the development types and plane distribution characteristics of geological structure, the development characteristics of coal-bearing strata and base paleotopography, and the temporal and spatial relations of coal seams and the characteristics of coordination with mining area structures in the southern margin of Binchang mining area. It confirmed:Jiangjiahe minefield in the southern margin of Binchang mining area has undergone the Triassic period, the tectonic evolution of each stage was basically synchronous with the tectonic evolution of Ordos basin; the development of main mining seam 4 was influenced by the development of Triassic basement paleotopography, Jurassic fluvial-lacustrine sedimentary environment and regional tectonic development, and the thick coal area is located in the south of Binxian anticline and the axis of Zhaopo syncline; the southern margin of Binchang mining area is rich in coal resources and has excellent coal quality, good mining conditions, good mining value and economic benefits. In view of the problems such as gas exceeding the limit, water sprinkler floor bulging and so on, measures can be taken to achieve safe mining.