基于3DMine-Phase^2分析复杂空区稳定性

Complex Goaf Stability Analysis based on 3DMine-Phase^2

某矿山使用空场法开采,多年来形成了大量采空区,为解决采空区造成的隐患,利用3DMine软件建立了矿山采空区的三维可视化模型,以此为依据通过Phase2软件,对采空区的稳定性进行了分析,得出该矿采空区的稳定性与采空区是否多中段联通、采空区的大小及位置等有关;指出了各剖面需要重点关注的地段。从4个剖面的稳定性分析来看:8线剖面会塌陷到地表,31线剖面会在地表形成开裂等,39线剖面会塌陷到地表,48线在地表的位移较小,重点关注区逐渐从上部向下移动。

A large number of goafs have been formed over the years of open field mining method.In order to solve the hidden danger caused by the goaf,we establish a 3D visualization model of the mine goaf by 3DMine software.Through the phase2 software,the stability of the goaf is analyzed.It is concluded that the stability of the mined area of the mine is related to whether the goaf is connected to the middle section or the size and position of the goaf.The sections that need to be focused on are pointed out.From the stability analysis of the four sections,the 8-line section will collapse to the surface,the 31-line section will form a crack on the surface,the 39-line section will collapse to the surface,the 48-line displacement on the surface will be small,and the focus area will gradually move down from the top.