人工假顶充填体稳定性数值分析

焦家金矿北部矿山矿岩破碎、充填体稳定性不理想，本研究对该矿不同进路的采场结构和人工假顶承载层厚度条件下承载层及相邻充填体的应力、应变、塑性变形等情况进行了数值模拟、非线性分析。根据分析结果，12种模型的承载层压应力过大，极有可能发生破坏；相邻充填体几乎均发生压坏现象，进路回采安全性差。故建议优化人工假顶构筑工艺，增加承载层强度，提高进路回采安全性。

Stability Numerical Analysis of Artificial Roof Filling Body

There are lots of crushed ore rocks and unstable filling body in north of Jiaojia gold mine. The numerical simulation and analysis on different ways of stope structure and artificial false top bearing layer thickness and bearing layer were done under the condition of adjacent filling the stress, strain and plastic deformation status, etc. According to this analysis, over stress for 12 kinds of model bearing bed possibly causes damage；Meanwhile, almost all adjacent filling bodies have been damaged with poor mining security. Therefore, the building process of artificial roof should be optimized; the bearing layer should be strengthened; and the security in mining should be also improved.