International Journal of Computer Science Issues

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In this paper, artificial pillar in one gold mine is designed and the stability of overlying strata at its supporting goaf is investigated. From the perspective of stress distribution, the results show that the stress which applied to roof overlying strata and artificial pillar cannot reach damage degree of instability, and the devised artificial pillar can meet the requirement of safety production. However, the stability monitoring at some key positions on the surrounding rock of goaf should be strengthened. It is found from the displacement changes that the larger the goaf span is, the greater the subsidence of roof overlying strata is. In addition, the mining in the next mid section has a great influence on the shifting of roof overlying strata at the goaf of the above mid section.