厚煤层放顶煤工作面防治水研究
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摘要
放顶煤开采时其导水裂隙带发育高度大于煤层顶板到白垩系宜君组含水层底部距离,在工作面薄弱处可能波及至洛河组含水层,工作面面临顶板水害威胁。对此,利用"大井法"进行工作面涌水量计算,考虑回采安全,正常涌水量按400 m3/h、最大涌水量按800 m3/h进行工作面水仓及排水系统的设计。
In the top-coal caving mining,the height of water flowing fractured zone is greater than the distance from the roof of coal seam to the bottom of the Cretaceous Yijun group aquifer,and the weak point of the mining face may be threatened by Luohe group aquifer. Therefore,the water inflow of working face was calculated with the big well method. Considering safety mining,the water sump and drainage system for working face was designed according to the standard that the normal water inflow is 400m~3/h and the maximum water inflow is 800m~3/h,.
In the top-coal caving mining,the height of water flowing fractured zone is greater than the distance from the roof of coal seam to the bottom of the Cretaceous Yijun group aquifer,and the weak point of the mining face may be threatened by Luohe group aquifer. Therefore,the water inflow of working face was calculated with the big well method. Considering safety mining,the water sump and drainage system for working face was designed according to the standard that the normal water inflow is 400m~3/h and the maximum water inflow is 800m~3/h,.
引文
[1]石英儒.金凤.煤矿首采工作面防治水技术研究[D].西安科技大学,2013.
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[4]朱宏军.鸳鸯湖矿区矿井涌水量预测方法研究[D].煤炭科学研究总院,2014.
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[2]刘洋,张幼振.浅埋煤层工作面涌水量预测方法研究[J].采矿与安全工程学报,2010,27(1):116-120.
[3]樊振丽.纳林河复合水体下厚煤层安全可采性研究[D].中国矿业大学(北京),2013.
[4]朱宏军.鸳鸯湖矿区矿井涌水量预测方法研究[D].煤炭科学研究总院,2014.
[5]付文安,许延春,高化军.高庄煤矿1501工作面顶板砂岩水的预计与预防[J].煤炭科学技术,2003,31(5):42-44.