关键词:  数字矿山, 巷道, 立井, 三维建模

Abstract: 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.    

Key words: Digital mine, Horizontal tunnel, Vertical shaft, Three-dimensional modeling