Abstract:
To provide the basis foundation for the evaluation of mine support and improve the management mechanism of coal mining face support, the resistance value of 94 hydraulic supports in 110102 face of Yangshan Coal Mine in Guizhou was measured for 6 rounds by manual on-site, and the results were analyzed.The research shows that: in 1118 observations, 12.79% of the data resistance value is 0, the resistance observation data without higher than 20 MPa accounts for 25.22%, and up to 46.7% of the supports have resistance values lower than the designed initial support force during the observation period.These data indicate that mining enterprises should pay attention to the normal and stable operation of mechanical equipment, and the operation stability of machinery is also an important prerequisite for the large-scale promotion of intelligent mining.The actual measurement shows that the force of the support along the working face direction and the weighting along the advancing direction are both non-single linear relationships.The existing coal face support management can be improved by changing the overall management idea to adapt to the intelligent transformation, optimize the abnormal management mechanism, and implement the linkage mechanism.