厚松散层薄基岩上分层开采覆岩移动规律
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摘要
结合赵固一矿11011工作面的具体地质条件,综合运用数值模拟和地表钻孔冲洗液漏失量观测方法,对采空区上覆岩层冒落带和裂隙带的高度进行了分析。工业性实验表明通过数值模拟确定的"两带"高度是合理的,进而确定了上分层开采防水安全煤岩柱尺寸及合理安全开采厚度。
Based on concrete geological condition of 11011 panel in Zhaogu No.1 coal mine, numerical simulation and observation method for leakage of surface drilling fluid are used to analyze the height of the caving zone and the fracture zone of overlying strata. Industrial experiments show that the height of the "two zones" determined by numerical simulation is reasonable.And then waterproof safety coal pillar size and reasonable safe mining thickness are determined according to research result.
Based on concrete geological condition of 11011 panel in Zhaogu No.1 coal mine, numerical simulation and observation method for leakage of surface drilling fluid are used to analyze the height of the caving zone and the fracture zone of overlying strata. Industrial experiments show that the height of the "two zones" determined by numerical simulation is reasonable.And then waterproof safety coal pillar size and reasonable safe mining thickness are determined according to research result.
引文
[1]煤炭工业部.建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程[M].北京:煤炭工业出版社,2000.
[2]钱鸣高,许家林,缪协兴.煤矿绿色开采技术[J].中国矿业大学学报,2003,32(4):343-348.
[3]许家林,朱卫兵,王晓振.基于关键层位置的导水裂隙带高度预计方法[J].煤炭学报,2012,37(5):762-769.
[4]王志刚.覆岩主关键层对导水裂隙演化影响的研究[D].徐州:中国矿业大学,2008.
[5]孙亚军,徐智敏,董青红.小浪底水库下采煤导水裂隙发育监测与模拟研究[J].岩石力学与工程学报,2009,28(2):238-245.
[6]刘洋.工作面不同采宽与导水裂隙带高度关系研究[J].煤矿安全,2010,41(4):13-17.
[7]缪协兴,王安,孙亚军,等.干旱半干旱矿区水资源保护性采煤基础与应用研究[J].岩石力学与工程学报,2009,28(2):217-227.
[2]钱鸣高,许家林,缪协兴.煤矿绿色开采技术[J].中国矿业大学学报,2003,32(4):343-348.
[3]许家林,朱卫兵,王晓振.基于关键层位置的导水裂隙带高度预计方法[J].煤炭学报,2012,37(5):762-769.
[4]王志刚.覆岩主关键层对导水裂隙演化影响的研究[D].徐州:中国矿业大学,2008.
[5]孙亚军,徐智敏,董青红.小浪底水库下采煤导水裂隙发育监测与模拟研究[J].岩石力学与工程学报,2009,28(2):238-245.
[6]刘洋.工作面不同采宽与导水裂隙带高度关系研究[J].煤矿安全,2010,41(4):13-17.
[7]缪协兴,王安,孙亚军,等.干旱半干旱矿区水资源保护性采煤基础与应用研究[J].岩石力学与工程学报,2009,28(2):217-227.