摘要
介绍了顶煤预裂松动爆破的基本原理 ,运用该原理计算出了焦作矿务局九里山煤矿 140 2工作面放顶煤回采的预裂松动爆破参数的理论值 ,结合其它煤矿的应用情况 ,经过反复试验 ,得到了切合实际的爆破参数 ,使放顶煤生产得以顺利进行 ,取得了较好的效果。
This paper introduce basic principle of presplitting and loose bursting with roof coal,knows parameter of presplitting and loose bursting,it counts out theoretical value in 1402 workface JinLiShan coal mine JiaoZhuo bureau with this principle,combining application situation of other coal mine and festing again and again it gets out bursting parameter,roof coal mining goes on smoothly,it has good vesult.
出处
《煤》
2000年第4期19-21,共3页
Coal
关键词
预裂松动爆破
放顶煤开采
炮采工作面
爆破原理
爆破参数
pre-splitting and loose bursting
caving mining
in the workface extracted by meansof blasting
