Analysis of the influence of ore column remining on the stability of empty area
Aiming at the question of whether the empty area formed after the recovery of the ore column is stable and whether it has an impact on the main surrounding structures.In this paper,the rock properties around the empty area were confirmed by uniaxial compression test,Brazilian splitting test,triaxial compression experiment and longitudinal wave velocity test,and on this basis,the model establishment and meshing were established by Madis geotechnical analysis software,and the numerical simulation operation was performed by FLAC3D finite element software to calculate whether the empty area of the ore column in the area was stable after mining,which better verified the feasibility of the mine column recovery scheme of the project.At the same time,the relevant models and calculation results in this paper can be used as a theoretical reference for the recovery of related ore columns.
Column recoveryempty areastabilityfinite element modelnumerical simulation analysis
万方数据
维普
