Research In Three-Dimensional Spatial Data Model And Its Applying In Digital Mine

All of the entities of natural geological and mining engineering are three-dimensional spatial entities. And mine producing and activities are in the true three-dimensional geological environment. Thus, the digital mine which can be applied in real world should be true three dimensional. And it is based on research of three-dimensional spatial data model. Data model is the bridge which connects real world and computer world, and as core content and basis of the digital mine, 3D spatial data model reflects 3D spatial entities of real mine and relations among of them. And it provided the concepts and methods of organization of 3D spatial data and design of 3D spatial data base schema.This paper defines an object-oriented integrated 3D spatial data model in the basis of analyzing of present spatial data model. And it uses the bore data of Kailuan mine to make a demo system of digital Kaiiuan mine, and it used the demo system to study the applying of the 3D spatial data model.The main achievements and innovations as follows:(1) Discuss the concepts of geospatial data and spatial data model of digital mine in detail. And in the basis of studying the present 3D spatial data model of digital mine, we classify and abstract the spatial entities of mine and define object-oriented integrated 3D spatial data model based on analyzing shortcoming of traditional 3D spatial data model when the data model applied in digital mine.(2) This paper uses real borehole data which were collected from Kaiiuan mine to design object-oriented integrated 3D spatial data model and realizes the data model in...