摘要
针对大宁煤矿3~#煤层赋存条件及工作面原有巷道布置特点,分析了回采巷道顶板大面积下沉原因,结合错层位巷道布置的特点,提出调整巷道布置位置解决巷道维护困难的思路,并对工作面巷道布置方案进行了优化,最后对确定的优化方案进行了工作面设计,经计算验证该方案具有较好的社会效益和经济价值,为错层位采煤法的进一步推广提供了依据。
Aiming at the occurrence conditions of 3~#coal seam and the working face roadway layout features in Daning coal mine,the reason for large area roadway roof subsidence is analyzed,and a thought of roadway layout position adjustment is proposed to resolve the roadway maintenance difficulties,combining with the characteristics of stagger arrangement roadway layout. And the roadway layout optimization scheme is proposed. Finally the working face is designed for the optimization scheme,and the social and economic benefits are verified by calculation.
出处
《煤炭工程》
北大核心
2016年第5期4-7,共4页
Coal Engineering
关键词
巷道布置
顶板下沉
错层位
区段煤柱
roadway layout
roof subsidence
stagger arrangement
section coal pillar
