摘要
依据淮南矿业集团顾桥煤矿工作面回采地质条件,采用二维数值模拟软件FLAC2D5.0,分析了工作面顶板的塑性区、应力分布等特征,并分析了工作面回采中导水裂隙带的发育高度。研究表明,采厚3.5m的工作面回采后,上覆岩层导水裂隙带发育高度为66m～72m。
According to geological condition of working face in Guqiao mine, the author uses 2D numerical simulation software FLAC2D5.0 to analyze the plastic zone of roof, stress distribution and developing height of water-flowing fractured zone. The study shows that the height of upper overlying strata water-flowing fractured zone is 66-72m after the 3.Sin-thick driving.
出处
《山西煤炭》
2011年第4期70-72,共3页
Shanxi Coal
关键词
掘进机
临时支护
机载
plastic zone
stress distribution
water-flowing fractured zone
