新景矿带压开采技术研究

Technology of Mining under Pressure in Xinjing Coal Mine

新景矿的煤层都具有良好的隔水层,但是在开采时仍有突水的可能性。因此,为了保证开采的安全性,需要对新景矿的地下水带压开采进行评价。在带压开采评价时,采用了五图-双系数法,双系数的取值均为0.06 MPa/m。研究结果表明,3^(#)、8^(#)、9^(#)、15^(#)煤层带压开采时,在井田内双系数均小于0.06 MPa/m,正常情况下,发生突水的可能性极小。可以为煤矿带压开采提供一定的参考。

The coal seam of Xinjing Coal Mine is of good water barrier layer,but there is still the possibility of water inrush during mining.Therefore,in order to ensure the safety of mining,it is necessary to evaluate the groundwater zone pressure mining in Xinjing Coal Mine.In the evaluation of mining under pressure,the method of five graphs-double coefficients was adopted,and the values of both coefficients were 0.06 MPa/m.The results showed that the double coefficients of 3~#,8~#,9~#and 15~#coal seams were less than 0.06 MPa/m when mining under pressure,and the possibility of water inrush was very small under normal circumstances.It can provide some reference for mining with pressure in coal mines.