五沟煤矿第四含水层下合理回采上限分析 .pdfVIP

学兔兔 2012年第4期 煤 炭 工 程 五沟煤矿第四含水层下合理回采上限分析 邓雪杰 ，谭辅清 ，房 萧 ， (1．中国矿业大学矿业工程学院，江苏徐州 221116； 2．煤炭资源与安全开采国家重点实验室，江苏徐州 221008) 摘 要：五沟煤矿lO煤的开采受上覆含水层的制约，尤其是第四含水层严重威胁了矿井的 安全开采。为了确定五沟煤矿四含水层下合理回采上限，在确保安全的前提下尽可能多的解放呆 滞煤量，文章以1011工作面为例，通过理论计算和RFPA数值模拟相结合的研究方法对五沟煤 矿合理回采上限进行分析。研究结果表明1011工作面煤层开采导水裂隙带高度为52．84m，最终 确定工作面的合理回采上限为一300m。 关键词：回采上限；含水层；导水裂隙带；RFPA 中图分类号：TD823．8 文献标识码：A 文章编号：1671—0959(2012)04-0079-04 Analysis on Rational Up—Limit of Mining Under No．4 Aquifer in Wugou Mine DENG Xue—jie ，TAN Fu—qing ，Fang Xiao (1．School of Mining Engineering，China University of Mining and Technology，Xuzhou 221116，China； 2．National Key Lab of Coal Resources and Safety Mining，Xuzhou 221008，China) Abstract：A mining in No．10 seam of Wugou Mine is restricted by above No．4 aquifer and the aquifer is seriously threatening the safety mining of the mine．In order to determine the up—limit of the rational mining under the aquifer in the mine and oa the premise of the safety ensured to liberate more dead coal quantity possibly．taking No．101 1 coal mining face as a case，a study method with the theoretical calculation and RFPA numerical simulation was applied to analyze the up—limit of the rational coal mining in Wugou Mine．The study results showed that No．101 1 coal mining in the seam caused the water flow crack zone with a height of 52．84m and the rational mining up—limit of the coal mining face in No．10 seam was finally set as一300m． Keywords：up—limit of coal mining；aquifer；water flow crack zone；RFPA 五沟煤矿位于安徽省濉溪县境内，主要可采煤层4层， 定合理的回采上限，实现含水层下高效安全的回采，对五