露天矿三维可视化矿床地质模型的建立

3D visualization deposit modeling in the open pit

基于裁剪曲面和不规则多边形,建立了露天矿三维可视化矿床地质模型,这个模型是由地质界面模型和地表面模型组合而成的。地质界面模型是由煤层的顶底板插值曲面经煤层边界和断层曲面裁剪而成的,地表面模型是对原始地表数据和矿坑数据进行三角剖分得到的三角形网格。根据露天矿的开采特点,实现了对模型的自动维护和更新,形成了动态的露天矿三维可视化矿床地质模型。

In this paper, based on the trimmed surface and polygon, the open pits 3D visualization deposit model is founded. This model is one combing deposit interface model with earths surface model. The interpolation face of coal seams is trimmed by boundary and the closed polygons of up and down faulted blocks to form the deposit interface model. The earths surface model is founded. The triangulation is gotten by TIN the data of the earths surface and the pit. According to the mining feature in the open pit, it is realized that modeling is automatically maintained and updated. As a result, a dynamic 3D visualization model is founded.