基于Delaunay三角剖分的复杂地质结构建模

Geometrical Modeling of Complex Geological Structures Based on Delaunay Triangulation

地质建模在有色金属矿产资源开采、石油勘探开发等领域有广泛的应用。地质结构往往由于断层等的存在经常呈现出非流形的情况,使得对复杂地质结构建模相对困难。考虑到Delaunay三角剖分具有良好的边界描述和约束适应能力,给出了基于Delaunay三角剖分进行复杂地质结构建模的方法,并用实例对算法进行了验证。实例表明提出的算法可以得到具有几何一致性和网格单元拓扑一致性的地质结构模型。

Geological modeling has been widely applied in areas such as nonferrous metal mine exploitation,petroleum exploration,etc.Geology structure often presents non-manifold situation due to faults,resulting in relatively difficulties on complex geological structure modeling.Considering the well-behaved boundary description and the capacity adjust to constraints of Delaunay triangulation,the method of complex geological structures＇ modeling based on Delaunay triangulation was presented.Then the algorithm was verified by a case.The results showed that the geological structure model with geometrical consistency and grid topological consistency could be obtained by the algorithm.