中文摘要：

数字矿山已经成为一个研究的热点,而矿山巷道作为整个矿山生产的核心组成部分,是矿山可视化中最直观的部分。在分析现有的巷道三维建模的基础上,采用＂分而治之＂的思想,提出了针对巷道网络内立井与平巷的相交模型的构建方法——剖分建模法,将相交部分剖分成3个独立的实体和2条空间曲线。通过具体的分析计算,求解出这2条空间曲线的离散点,采用相邻轮廓线构模法,将立井的三维模型构建出来,结合对称建模法构建平巷的三维模型。然后将这3部分组合在一起,构成了立井与平巷的相交模型,保持了巷道内的连通性,且生成的模型是无缝集成的。实例表明,该方法在构建平巷与立井的相交模型中是可行的。

英文摘要：

The digital mine is a hot research topic.Mine tunnel is core component in the whole mining production and is the most intuitive part in visualization of mine.Based on analyzing the current methods of three-dimensional modeling,the paper puts forward the division modeling method which can be used to construct the complex intersected model between vertical shaft and horizontal tunnels.Its idea is ＂divide and rule＂,namely,dividing the intersection part into three individual entities and two spatial curves.According to analysis and calculation,the scattered points on the two spatial curves can be got.The vertical shaft is built by using adjacent contour modeling method.The 3D models of the horizontal tunnels are constructed by adopting the symmetrical modeling method.The whole intersected model is generated through composing vertical shaft with horizontal tunnels.Its advantage is that the whole model is inner connected with each other and seamless integration.It is shown that the method mentioned is feasible to deal with the intersection between vertical shaft and horizontal tunnels.