正旺铁矿声发射监测点的优化布置

Optimization of distribution of monitoring point for acoustic emission in Zhengwang Iron Mine

利用有限元分析计算软件建立了正旺铁矿的三维数值模型并计算了采场的整体稳定性,根据计算结果找出-560m水平由于应力集中效应而产生的较大的应力范围。然后结合正旺铁矿-560m水平中段图,标示出应力较大点位置,在此基础上优化声发射监测点的布置,从而为采空区的加固和声发射监测提供较准确的理论依据,为矿山的安全生产提供保障,也节省了矿山的生产成本。

The stability of the gob was calculated based on 3D numerical model of the gob in Zhengwang Iron Mine constructed with ANSYS,which shows that stress concentration area is mostly in the level of-560 m,so arrangement of acoustic emission monitor spots were optimized.As insult,theoretical basis for supporting the gob and acoustic emission monitoring were obtained,which also ensures the safety of the mine operation.