水体下综放开采的安全煤岩柱留设方法研究
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摘要
为了合理留设水体下特厚煤层综放开采的安全煤岩柱,根据实测资料回归得出了适用于综放开采工作面中硬、软弱覆岩条件下的"两带"高度的计算公式,提出了水体下综放开采安全煤岩柱保护层的"有效隔水厚度法"和"最小安全厚度法"的留设方法,分别提出防砂安全煤岩柱、中等富水性水体和强富水性水体防水安全煤岩柱保护层的留设值。在此基础上,完成了水体下综放开采条件下中硬、软弱覆岩的安全煤岩柱的留设方法。
In order to rationally leave the safety coal and rock pillars under the water body for the fully mechanized top coal caving mining in the ultra thick seam,based on the calculation formula of the " two zone" heights suitable for the fully mechanized top coal caving mining face under the middle hard and soft weak overburden strata regressively obtained with the site measure information,the left method of the " effective water insulated thickness method" and the " min safety thickness method" were provided to the safety coal and rock pillar protective layer for the fully mechanized top coal caving mining under water body.The left value of the sand prevention safety coal and rock pillar and water prevention safety coal and rock pillar protective layer under the middle watery water body and rich watery water body was individually provided.Based on the basis,the left method of the coal and rock pillars under the middle hard and soft weak overburden strata water body was completed for the fully mechanized top coal caving mining.
In order to rationally leave the safety coal and rock pillars under the water body for the fully mechanized top coal caving mining in the ultra thick seam,based on the calculation formula of the " two zone" heights suitable for the fully mechanized top coal caving mining face under the middle hard and soft weak overburden strata regressively obtained with the site measure information,the left method of the " effective water insulated thickness method" and the " min safety thickness method" were provided to the safety coal and rock pillar protective layer for the fully mechanized top coal caving mining under water body.The left value of the sand prevention safety coal and rock pillar and water prevention safety coal and rock pillar protective layer under the middle watery water body and rich watery water body was individually provided.Based on the basis,the left method of the coal and rock pillars under the middle hard and soft weak overburden strata water body was completed for the fully mechanized top coal caving mining.
引文
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[19]许延春,李俊成,刘世奇,等.综放开采覆岩“两带”高度的计算公式及适用性分析[J].煤矿开采,2011,16(2):4-7.
[20]许延春.综放开采防水煤岩柱保护层的“有效隔水厚度”留设方法[J].煤炭学报,2005,30(3):305-308.
[2]国家煤炭工业局.建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程[S].北京:煤炭工业出版社,2000.
[3]陈佩佩,刘鸿泉,张刚艳.海下综放开采防水安全煤柱厚度的确定[J].煤炭学报,2009,34(7):875-880.
[4]张文泉,刘伟韬,高延法,等.南屯矿63上10面综采放顶煤开采覆岩移动变形破坏特征研究[J].山东矿业学院学报,1996,4(12):24-28.
[5]狄利娟,张国信,谢业良,等.南屯煤矿九采区覆岩采动破坏特征EH4探测研究[J].山东煤炭科技,2005(1):44-45.
[6]王兆丰,李青松,杨利平,等.下石节矿综放工作面上覆岩层位移冒落带高度确定的研究[J].煤,2007,15(1):1-3.
[7]胡戈,李文平,程伟,等.淮南煤田综放开采导水裂隙带发育规律研究[J].煤炭工程,2008(5):74-76.
[8]尹增德,李伟,王宗胜.兖州矿区放顶煤开采覆岩破坏规律探测研究[J].焦作工学院学报,1999,18(7):235-238.
[9]黄福昌,倪兴华.厚煤层综放开采沉陷控制与治理技术[M].北京:煤炭工业出版社,2007:111-120.
[10]陈勇,王红胜,郭念波,等.厚煤层上行开采放顶煤技术研究与应用[J].煤炭科学技术,2009,37(6):9-13.
[11]于克君,骆循,张兴民.煤层顶板“两带”高度的微地震监测技术[J].煤田地质与勘探,2002,30(1):47-51.
[12]陈荣华,白海波,冯梅梅.综放面覆岩导水裂隙带高度的确定[J].采矿与安全工程学报,2006,23(6):220-223.
[13]申宝宏,孔庆军.综放工作面覆岩破坏规律的观测研究[J].煤田地质与勘探,2000,28(5):42-44.
[14]闫康新.综采放顶煤工作面“冒落裂缝带”高度探测[J].煤,2009,17(11):44-45.
[15]蔡东.综放面“两带”高度发育特征[J].采矿与安全工程学报,2001,18(1):68-69.
[16]王连富,李卫东,刘道文,等.综放采场覆岩破坏高度的实测方法及应用[J].矿业安全与环保,2005,32(3):70-71.
[17]李德洋,丁维国,朱耀武.阳泉五矿综放开采“三带”分布的测定[J].煤矿安全,2007,38(11):16-17.
[18]邹海,桂和荣,王桂梁,等.综放开采导水裂隙带高度预测方[J].Coal Geology&Exploration,1998,26(12):43-46.
[19]许延春,李俊成,刘世奇,等.综放开采覆岩“两带”高度的计算公式及适用性分析[J].煤矿开采,2011,16(2):4-7.
[20]许延春.综放开采防水煤岩柱保护层的“有效隔水厚度”留设方法[J].煤炭学报,2005,30(3):305-308.
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