摘要
为了探究东滩煤矿规划设计的七采区巨厚侏罗系红层下山西组厚煤层露头区开采防水煤柱留设问题,选择典型的露头区附近6个钻孔围成的区域进行了系统分析,绘制了侏罗系厚度和3上煤层顶板到侏罗系红层底部间距等值线。在此基础上,建立了典型3上煤层开采的工程地质剖面图,采用类比分析和相关规范以典型钻孔为例对巨厚红层下开采厚煤层防水煤岩柱留设进行了探讨。
To study the waterproof coal pillar design for mining in the outcrop area of thick coal seam in Shanxi Formation under the large Jurassic red stratum in the seventh mining area planned and designed by Dongtan Coal Mine,the systematic analysis is carried out on six boring-enclosed areas near the typical outcrop area,and the Jurassic thickness and the interval contour line between the top plate of the third upper coal seam and the bottom of the Jurassic red stratum are drawn.On this basis,the engineering geological profile of typical third upper coal seam mining is established,and the typical borehole is taken as the case to discuss the waterproof coal pillar design for thick coal seam mining under thick red stratum by using the analogy analysis and related specification.
作者
谢华东
XIE Huadong(Dongtan Coal Mine,Yanzhou Coal Mining Co.,Ltd.,Zoucheng 273500,China)
出处
《煤矿安全》
CAS
北大核心
2020年第9期201-204,共4页
Safety in Coal Mines
基金
国家自然科学基金面上资助项目(41741020)。
关键词
巨厚侏罗系红层
等值线
防水煤柱留设
露头区
厚煤层
类比分析
large thick Jurassic red stratum
contour line
waterproof coal pillar design
outcrop area
thick coal seam
comparison analysis
