基于AutoCAD的露天矿三维建模与应用研究

露天矿三维地质模型是数字矿山建设中的信息平台,对露天矿的工程设计、生产管理有重要的指导意义。在AutoCAD平台下,以某露天矿为例,建立地质数据库,根据断层线构建断层线框模型,根据采场现状图和地形等高线构建地形模型,根据钻孔数据和内插点构建煤岩实体模型,实现了露天矿三维地质模型的可视化显示;根据煤岩实体模型建立块体模型,对块体模型添加属性、赋值,并将其应用到露天矿采剥工程量计算中,与传统算量方法相比,该方法操作简单,提高了计算的速度与精度。

THREE-DIMENSIONAL MODELING OF OPEN-PIT BASED ON AUTOCAD AND ITS APPLICATION

Three-dimensional geological model of open-pit which has important guiding significance for engineering design and production management is the information platform in digital mine construction.Taking an open pit for instance,AutoCAD is used as software platform and a geological database should be constructed.According to fault wire-frame model constructed by fault lines,terrain model through topographic contour map and stope status map and coal rock solid model constructed through borehole data and interpolation points,three-dimensional visual display of geological model in open-pit can be realized.Block model is constructed according to coal rock solid model,and then the attributes of block model are added and assigned.Quantities of mining stripping in open-pit are calculated by using block model.Calculation speed and precision are increased compared with traditional quantity calculation methods.