密集陡倾斜薄脉状矿体三维建模方法

轮廓线建模方式难以建立密集陡倾斜薄脉状矿体的三维模型,现在其空间信息特征的基础上,提出了一种针对薄脉状矿体的三维建模方法.该方法在矿脉精简的基础上,以品位高、走向及延伸稳定的主矿脉作为建模对象,采用三维曲面重构技术构建三维矿脉面模型,同时利用矿脉中段面约束矿体的走向和延伸,以保证矿脉面模型的合理性.实践表明:该方法建立的三维模型对陡倾斜薄矿脉群表达效果良好,可应用于矿山三维可视化和深部矿体预测等领域.

Intensive steeply-inclined thin vein orebody three-dimensional modeling method

It is difficult to build the three-dimensional model for intensive steeply-inclined thin vein by usingcontour modeling method. Starting from the complexity and particularity of its spatial distribution, a new three-dimensional modeling method was proposed, focused on thin vein orebody. Firstly, simplified the ore vein and extract high grade of main stable veins, then lengthened and deepened them as modeling object, secondly, three-dimensional surface model was constructed based on the technology of three-dimensional surface reconstruction, at the same time, the cross-section of the ore veins were used to constrain the orebody extending and deepening and to ensure the rationality of vein surface model. The theoretical analysis and experiment proves that the three-dimensional vein group model has better match condition to the actual situation, which can be used as the visualization tool for three-dimensional model and prediction of the deep orebodies.