摘要
通过现场实测研究了新阳煤矿复合坚硬顶板条件下综放工作面顶煤和顶板的运移规律。研究表明,在未处理坚硬顶板和夹矸的条件下,9#顶煤和直接顶板也能及时冒落,有利于提高顶煤采出率。
Movement rules of top-coal and roof in full-mechanized caving mining face under combined hard roof in Xinyang Colliery are researched by in-situ observation. Results show that top-coal and immediate roof of 9^# Coal can cave in time even if hard roof and dirt band are not disposed of, which is benefit for top-coal recovery.
出处
《煤矿开采》
2008年第6期82-83,86,共3页
Coal Mining Technology
关键词
复合坚硬顶板
综放开采
顶煤位移
顶板位移
实测
combined hard roof
full-mechanized caving mining
top-coal displacement
roof displacement
observation
