摘要
为了合理确定大采高综采工作面覆岩"两带"高度,采用微震监测技术探测顶板覆岩破断特征,从走向和倾向两个方面来分析微震事件分布规律,从而确定了大采高综采面"两带"的高度:垮落带高度约20m,裂缝带高度约45m。研究认为基于微震监测的大采高综采面覆岩"两带"探测方法可行,很好地解决了覆岩破坏实测难题。
In order to rationally determine “two-zone” height of large-mining-height full-mechanized mining face , applying micro-seismic monitoring technology to detecting roof broken characteristic , “two-zone” height was determined on the basis of micro-seismic matters distribution rule.Caving zone height was about 20m and fissure zone height was about 45m.It was proved that micro-seismic mo-nitoring is feasible for detecting “two-zone” height and well settled the difficult problem of measuring overlying strata failure .
出处
《煤矿开采》
北大核心
2014年第4期112-114,共3页
Coal Mining Technology
基金
国家自然科学青年基金资助项目(51304115)
开采设计事业部科技创新基金(KC-QNCX-2012-01)
关键词
微震监测
大采高综采
覆岩破断特征
micro-seismic monitoring
large-mining-height full-mechanized mining
overlying strata broken characteristic
