基于TIN的三维地质建模研究

Research on TIN-based 3D Geological Modeling

将三维地质建模技术用于地质分析,提出一种基于TIN的建模方法。采用带断层约束的三角剖分算法,实现海量数据Delaunay三角剖分,建立地质层面模型,以地层和断层为约束,根据层序地层学原理,按层序网格表征方式细分地层,建立层序模型,并在结构模型的基础上,使用距离加权反比法估算网格结点的属性,建立地质体属性模型。

Using 3D geological modeling technology to do geological analysis,this paper proposes a method for TIN-based modeling method.It uses fault as constraint triangular divide method to achieve the Delaunay triangulation of the mass data rapidly,builds the geology model.Stratum and faults as constraint,it is according to the principle of sequence stratigraphy,sequence by grid representation subdivision formation establishing sequence model and structure model based on the weighted distance inverse method for estimation of grid node attribute values to establish geological attribute model.