Comparative Analysis of Perimeter Rock Control Technology and Simulation Effect
In order to achieve the stability of the surrounding rock of the current mining face in a mine,the joint support technology of anchor rods,metal mesh,reinforced ladder beams and anchor cable reinforcement is adopted for the section affected by the mining action,and the maximum deformation of the surrounding rock with and without support is analysed in the range between 192 and 204 m of the excavation distance,and when there is no support,the maximum amount of the coal pillar gangs and the return gangs is 2,037 mm and 1,285 mm,respectively;and the maximum amount of deformation is 38 mm and 59 mm,respectively,and the reduction rate of the amount of the deformation is 38 mm and 59 mm,respectively.Under the support,the maximum amount of deformation is 38 mm and 59 mm,and the reduction rate of the amount of proximity is 98.1％and 95.4％,which indicates that the perimeter rock can be well stabilised and controlled after adopting the optimised support scheme.
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