Abstract: Underground laneway is most important component in coal mining and it’s very difficult for visualization because laneway has complex relation in each other.According to characters and applications of mine，this paper researches on 3D data model and takes the laneway made up of the node，joint and mid laneway line.By building up the topologic relation，adding section and joint processing，3D laneway model can be built well.Addition to that，making use of database and virtual reality technology，it can be convenient to realize data storage，3D visualization and operation in 3D circumstance about laneway.At last，this paper makes a prototype system with underground laneway data from a mine in Shanxi province.

摘要：
摘 要：矿山井下巷道是矿山开采系统最为重要的组成部分，但其纵横交错、关系复杂，而巷道三维可视化系统可以对其进行客观、形象的描述。针对矿山的特性和应用需求，对巷道三维网络模型进行了研究，根据巷道原始导线点数据，将巷道抽象成结点、节点和巷道中线，并将其构成相应的拓扑关系，通过断面的加载和接口的处理实现巷道建模，再利用数据库技术和虚拟现实技术实现巷道数据的存储和三维巷道的虚拟可视化以及虚拟环境中的交互操作。最后，以山西某矿井下巷道数据，给出一个原型系统。