Technology of Mining under Pressure in Xinjing Coal Mine
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.
coal mine water controlmining under pressurewater burstfive graphs-double coefficient method
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NSTL
万方数据
维普
