煤矿安全2012，Vol.43Issue(11)：154-157,4.
同安煤矿远距离上保护层开采保护效果初探
Research on Mining Protective Effect in the Long Distance Upper Protective Seam of Tong'an Coal Mine
摘要
Abstract
The long distance upper protective seam mining in Tong'an Coal Mine is considered as the research object in this paper.Through testing the parameters change in the 15th outburst coal seam of Tong'an Coal Mine,which include gas pressure,gas flow,permeability,relative deformation,it studies the outburst protection effect that the 5th coal seam as upper protective seam gives the lower 15th coal seam effective protection.The results show that the original gas pressure of the 15th coal seam drops obviously within the lower protected scope,the relative deformation increases to 2.41 ‰,gas flow increases in 67 folds and the permeability coefficient increases in 115 folds.The 5th long distance upper protective seam gives the lower 15th protected coal seam a good protective effect.关键词
煤与瓦斯突出/远距离上保护层/保护距离Key words
coal and gas outburst/long distance upper protective seam/protective distance分类
矿业与冶金引用本文复制引用
谢雄刚,车海云,朱云仓..同安煤矿远距离上保护层开采保护效果初探[J].煤矿安全,2012,43(11):154-157,4.基金项目
贵州省教育厅自然科学重点资助项目[黔教科（2011）034号] （）
贵州省科技厅工业攻关项目[黔科合GY[2012]3054] （）
贵州省国际科技合作计划资助项目[黔科合外G字（2009）700111号] （）
