厚煤层放顶煤工作面防治水研究
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摘要
煤层厚度较大,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,工作面存在顶板水害威胁。本文利用"大井法"进行工作面涌水量计算,考虑回采安全,按正常涌水量400m~3/h、最大涌水量按800m~3/h进行考虑。进行了工作面水仓,工作面排水系统的设计。
The coal seam thickness is large, the use of top coal caving mining causes the height of diversion fissure zone is larger than the distance from the coal seam roof to the aquifer bottom of Cretaceous Yijun group, in the face of weak point may spread to the Luohe aquifer, working face was threatened by roof water disaster. The working face water inflow is calculated by using the "big well method", considering the safe mining, according to the normal water inflow of 400m~3/h, the maximum water inflow of 800m~3/h. the drainage system of the working face and the working face sump were designed.
The coal seam thickness is large, the use of top coal caving mining causes the height of diversion fissure zone is larger than the distance from the coal seam roof to the aquifer bottom of Cretaceous Yijun group, in the face of weak point may spread to the Luohe aquifer, working face was threatened by roof water disaster. The working face water inflow is calculated by using the "big well method", considering the safe mining, according to the normal water inflow of 400m~3/h, the maximum water inflow of 800m~3/h. the drainage system of the working face and the working face sump were designed.
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:西安科技大学,2013.
[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(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].北京: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].北京: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(5):42-44.
[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(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].北京: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].北京: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(5):42-44.