Study on mine pressure behavior law of intelligent working face with large mining height
With the continuous advancement of the intelligent process of coal mining face,it is very important to accurately grasp the law of mine pressure in working face for surrounding rock control.Aiming at the problem of mine pressure behavior in large mining height intelligent working face of Hongqingliang Coal Mine,the field measurement and theoretical analysis methods were used to study and ana-lyze the pressure parameters and characteristics of the working face,and the evaluation of the working performance of the support.The fol-lowing conclusions were obtained:①The initial weighting step was 46.0～64.1 m,and the weighting strength was 13 085.6～14 509.9 kN;②The periodic weighting step was 14.1～18.0 m,and the weighting strength was 13 045.7～14 809.5 kN.Through actual measurement and analysis of the working resistance of the support,it was concluded that the rated working resistance of the support can meet the demand of roof support,and the support performance was well performed.
large mining height intelligent working facemine pressure behaviorinitial pressureperiodic pressureevaluation of support resistance
万方数据
维普
