摘要
对隆泰公司矿压进行了实际观测,包括放顶煤初次垮落步距、直接顶岩层初次垮落步距、基本顶岩层初次垮落步距及其来压强度。对炮采工作面进行了观测,分析工作面支架受力状况,研究回采工作面矿压显现规律,为安全生产提供依据,对同类条件炮采放顶煤开采具有指导意义。
Longtai company of mine pressure of the actual observation, including the top coal caving initial caving step distance, the direct roof initial caving step distance of basic roof, initial caving step distance and pressure strength. The blasting mining working face were observed, analysisthe working face support stress condition, pressure behavior of working face mine, provide the basis for the safety in production, has a guiding significance for the similar blasting caving coal mining conditions.
出处
《内蒙古煤炭经济》
2015年第2期156-157,共2页
Inner Mongolia Coal Economy
关键词
炮采放顶煤
初次来压步距
周期来压步距
shot firing and roof - coal
first weighting interval
periodic weighting length
