Research on the variation rules of stress in deep exploitation of hard rock metal mines based on dynamic mine pressure monitoring

摘要

Hard rock stress field of metal mine in deep exploitation is influenced by multitudinous factors.Along with the increase of mining depth, the stope is more complicated in high stress state under the influence.This article studies monitored the surrounding rock activities around the hard rock metal mines consecutively and dynamically by established 10 monitor stations and analyzed the essential rules of stress field and the characteristics of the stope deformation and surrounding rock failure modes.The study revealed the mechanical behavior and the movement trend of tunnel, which is of important theoretical meaning to deep exploitation of hard rock metal mines and provide the reference for dynamic disaster prediction.