摘要
太原煤炭气化集团有限责任公司龙泉矿井是新建的大型现代化矿井,依据该矿井大部分钻孔揭露的煤层厚度大于6.0m,在综合分析该矿井开采深度,煤层厚度、煤层结构、夹矸层数及其硬度和厚度、煤层顶板岩性及其厚度、煤岩体裂隙发育程度等地质因素基础上,考虑瓦斯聚积程度及煤尘量等影响因素,对长壁综采分层开采法、综采一次采全高采煤法和长壁综采放顶煤采煤法三个采煤方案进行优选,最终选定该矿采用长壁综采放顶煤采煤方法,依靠地压破煤及自重放煤,提高厚煤层的回收率。
The Longquan coalmine of Taiyuan Coal Gasification (Group) Co. Ltd is a newly built large scale modern coalmine. According to great mass of borehole revealed coal seam thickness is larger than 6.0m, based on geological factors of mining depth, texture of coal seam, parting number, hardness and thickness, seam roof lithology and thickness, coal and rock mass fissure development, considering gas and coal dust concentrations, optimizing three coal mining method schemes of longwall fully mechanized slicing, fully mechanized full-seam cutting and longwall fully meehanized overhead caving and finally the later is selected, and assisted with ground pressure coal crushing and gravity drawing to improve coal seam recovery.
出处
《中国煤田地质》
2007年第6期33-35,共3页
Coal Geology of China
关键词
长壁综采放顶煤采煤方法
煤层厚度
煤层结构
龙泉矿井
longwall fully mechanized overhead caving coal mining
coal seam thickness
texture of coal seam
Longquan coalmine