成庄矿3^#煤层五盘区带压开采可行性研究

Feasibility Study on Mining above Confined Aquifer in No.3 Coal Seam of Chengzhuang Coal Mine

晋城蓝焰煤业股份有限公司成庄矿3#煤层局部为带压开采,为确定井田中部五盘区3#煤层综采工作面带压开采的安全性,采用理论分析、现场实测等方法进行研究。结果表明,采动影响下底板破坏深度的理论计算结果为14.5 m,现场实测结果为15.45 m,采用突水系数法以最不利的条件进行分析计算,得到5316工作面突水系数为0.081 MPa/m,突水系数小于0.1 MPa/m,因此,该矿3#煤层五盘区能够进行带压开采。

Mining in Chengzhuang mine No.3 coal seam is partially under aquifer.To verify the safety mining under water pressure in the No.3 coal seam fully mechanized face,theoretical analysis and on-site measurement are used.The results show that the theoretical calculation result for the destruction depth of the floor under the influence of mining is 14.5 m,and the field measurement result is 15.45 m.The water inrush coefficient method is also used to analyze and calculate under the most unfavorable conditions,and the water inrush coefficient of 5316 face is 0.081 MPa/m,which far less than 0.1 MPa/m,mining safety under aquifer verified.