Research And Application Of Three-dimensional Digital Model System In Mine

This paper makes a secondary development of AutoCAD under the VB environment for simple practical mine three dimensional stereoscopic model system which coal mines enterprises require. A mine three-dimensional stereoscopic model management system is developed through extracting data information from two-dimensional drawings of mine, three dimensional stereoscopic scene modeling, computer programming languages, database Access and other technical means.Dynamically creating of three dimensional models and information management is achieved. Mine map rapid conversion from two-dimensional to the three dimensional digital form is implemented, mine three-dimensional stereoscopic model can review the solid shape of the whole mine clearly.We can see spatial pattern of whole mine roadways and working faces distribution from a distance and identify strata relations in local roadway cross clearly from a nearby.Triangle segmentation of mining face model is designed based on mine three dimensional digital stereoscopic model. Face real-time progress and digital production calculation model are built.Real-time production is calculated in systems interface. Given the prediction of roadway deformation value of the variable a function expression, roadway deformation and roadway information in the corresponding model can be clearly displayed and updated in real time by platform of three-dimensional digital modeling system in coal mine. People space position real-time positioning display model is built based on the1:1size relationship between three dimensional mine model and the entity mine and spatial accurate match relationship of three dimensional coordinates. We can quickly navigate to where this person is located in the model if underground personnel three dimensional coordinates are known. We can analyze best rescue route in underground quickly when the underground disaster strikes and provide necessary decision support to reduce mine casualties and property loss.Research results are tested to apply in Zhangji coal mine in Anhui Province.Validity and practicability of the research results are verified.It has a certain significance for mine safe and efficient production, informatization mine construction and intelligent decision.