Realization of three-dimensional tunnel Modeling

The mine tunnel is the important channel for mining, security and ventilation. 3D (three-dimensional) tunnel modeling is necessary to Digital Mine design. Based on the feature analysis of mine surveying data, the paper introduces a new method of 3D tunnel modeling. The main research process is conducted as follow: 1) Algorithmic analysis and formula argumentation of 3D tunnel modeling; 2) Error analysis of model arithmetic; 3) Software materialization and offering instance. The result shows that the modeling method of this paper can establish 3D tunnel model rapidly according to the mine surveying data. In comparison with the traditional ichnography of coal tunnel, the 3D modeling method is more actual, precise and realizes the most important function of spatial analysis.