导水裂隙带高度预测方法的研究
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摘要
以矿压理论、"上三带"理论为基础,从岩层碎胀特性及岩层组合运动出发分析,分别推导出了垮落带高度为(2.17~1.67)倍的采高、裂隙带高度为(6.67~10)倍的采高,从而推导出了导水裂隙带的初步预计高度为(8.34~12.17)倍的采高,依据煤矿地质条件和开采条件进行具体分析,得到导水裂隙带最终预计高度,并得到了现场实测验证。
On the basis of ground pressure theory, and upper 3 zones theory,by analyzing the expansion property of rock and strata combination movement,deduced the height of the caving zone and fractured zone are(2.17~1.67) and(6.67~10)minable coal thickness respectively,thus determining the water flowing fractured zone preliminary estimate height is(8.34 ~ 12.17) times the mining height,carrying out specific analysis on coal geological conditions and mining conditions,obtained final estimate height of water fracture zones,And verified by the field measured result.
On the basis of ground pressure theory, and upper 3 zones theory,by analyzing the expansion property of rock and strata combination movement,deduced the height of the caving zone and fractured zone are(2.17~1.67) and(6.67~10)minable coal thickness respectively,thus determining the water flowing fractured zone preliminary estimate height is(8.34 ~ 12.17) times the mining height,carrying out specific analysis on coal geological conditions and mining conditions,obtained final estimate height of water fracture zones,And verified by the field measured result.
引文
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[4]王连国,王占盛,黄继辉,等.薄基岩厚风积沙浅埋煤层导水裂隙带高度预计[J].采矿与安全工程学报,2012,29(5):607-612.
[5]王玉成,王昌祥,牟文强.充填开采覆岩导水裂隙带高度预测[J].煤炭技术,2015,34(6):181-183.
[6]汤佳佳,王昌祥,李金平,等.浅埋软岩厚煤层导水裂隙空间特征及发育机制模拟研究[J].煤炭技术,2016,35(5):66-68.
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[2]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.
[3]许家林,王晓振,刘文涛,等.覆岩主关键层位置对导水裂隙带高度的影响[J].岩石力学与工程学报,2009,28(2):380-385.
[4]王连国,王占盛,黄继辉,等.薄基岩厚风积沙浅埋煤层导水裂隙带高度预计[J].采矿与安全工程学报,2012,29(5):607-612.
[5]王玉成,王昌祥,牟文强.充填开采覆岩导水裂隙带高度预测[J].煤炭技术,2015,34(6):181-183.
[6]汤佳佳,王昌祥,李金平,等.浅埋软岩厚煤层导水裂隙空间特征及发育机制模拟研究[J].煤炭技术,2016,35(5):66-68.
[7]宋振骐.实用矿山压力控制[M].徐州:中国矿业大学出版社,1988.