Numerical experimental study on optimization of mining scheme in a gold mine based on Flac3D
In order to explore the effect of mining sequence on surface subsidence,taking the practical production problems of a gold mine as the engineering background,different mining schemes were designed.The Flac3D software was used for numerical simulation,with surface deformation magnitude and plastic zone volume monitored as evaluation indicators to analyze the movement patterns of the surface under different mining schemes.The research results indi-cate that disturbances generated by simultaneous mining of two levels have a significant impact on surface movement,and the smallest surface subsidence occurs when the seventh and eighth levels are simultaneously mined.The volume of plastic zone damaged is closely related to the mining sequence,and the smaller the total volume of levels mined simul-taneously,the smaller the volume of plastic zones damaged after the completion of overall mining in the mine.The research findings provide a reference basis for safe and efficient mining in the mine.
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