矿体三维可视化建模技术

回顾了矿山数字化建设的关键技术之一的矿体三维可视化建模的相关工作,包括主要的矿体三维模型、数据插值技术;给出了矿体三维建模可以考虑的三个维度:模型构成元素、存储的数据类型和构成元素的形状,由这三个维度可以组合出满足需要的模型;提出了适合于基于钻孔数据的矿体三维建模的可裁减的集成的断面-不规则三角网(TIN)-广义三棱柱模型(GTP),它可以方便地利用钻孔数据构造矿体断面,然后利用TIN连接相邻断面形成矿体线框模型,利用GTP表示矿体内部结构;并给出了矿体三维可视化建模技术需要进一步研究的问题.

Visualized 3-D Modeling of Orebodies

Reviews the previous works in relation to the visualized 3-D modeling of orebodies which is one of critical techniques of mining digitization,including the data interpolation techniques and 3-D modeling of basic orebody. In this respect, the three dimensions are regarded as appropriate to the modeling, i.e., the elements to constitute a model, the type of the data to store in the model and the shape of the elements to constitute the model. A model meeting the actual requirements can therefore be built by combining the three dimensions together. An integrated and clippable Section-TIN-GTP (Section-Triangulated Irregular Net-Generalized Tri-Prism) model is proposed to suit the orebody modeling based on borehole data.It can handily employ borehole data to construct the cross-sections of an orebody, then TIN is used to join two adjacent cross-sections to form a wireframe model of the orebody with generalized tri-prisms(GTPs) used to present the internal structure of the orebody. The problems to be studied further for the visualized 3-D modeling of orebodies are put forward.