摘要
以潞安集团漳村矿下组15-1号与15-2号煤层联合开采为背景,应用离散元软件UDEC对近距离薄煤层群联合开采矿压显现规律进行模拟分析,得出了联合开采中顶板破坏程度和垮落高度变化较大,而顶、底板各应力没有较大变化,说明了近距离联合开采是可行的。
This paper takes Lu-an zhangcun mine as an example with combined minging in the No.15-1 coal seam and No.15-3 coal seam as the subject investigated.Analysis on coal pressure appearance rule in combined destructiveness and collapse mining of close-distance thin coal seam group by the software UDEC.the height of Roof are larger variety.but the pressure of roof and floor have less change,that show combined minging of close-distance thin coal seam group is feasible.
出处
《山西煤炭》
2010年第2期38-40,57,共4页
Shanxi Coal
关键词
联合开采
采场围岩应力
数值模拟
combined mining
surrounding rock stress
numerical simulation
