矿山巷道三维建模及其空间距离近似计算

3D Design for Mine Tunnel and Approximate Method for Calculating Its Space Distance

大型矿山通常有复杂的巷道系统,传统的平面设计难以清晰表达巷道之间的空间关系,使工程技术人员不能直接获取巷道系统的空间分布特征。本文尝试采用三维建模进行巷道的空间优化布置,将其分解为断面设计和轴线设计,采用拖拉的方法生成巷道的三维实体模型。借助地理信息系统中的空间分析方法,建立巷道模型与轴线、断面之间的连接关系,借助该连接关系,提出一种三维巷道的空间最短距离的近似计算方法,即先计算轴线之间的空间最短距离,然后再减去两端截取部分,可得到空间任意巷道之间近最短近似距离。最后,将该方法应用于安徽某煤矿工程。

There is complex tunnel system for large scale mine which makes traditional design in two-dimension not suitable for expressing spatial relation and the technician can＇t get the spatial distribution of the tunnel directly.This paper models the tunnel in 3D for optimization of spatial layout of the tunnel.The 3D design for tunnel could be divided into two parts： the section design and the axis one.The tunnel model is established by extruding method,which is extruding the section along its corresponding axis.The relationships between tunnel,axis and section are linked at the mean time.Based on this link,one approximate method for acquiring its space distance is proposed in this paper,which is calculating the minimum distance from its axis between any two tunnels first,and then subtracting the end distances.Finally,this method has been applied to practical engineering in Anhui province.