基于GIS拓扑关系的三维地质剖面信息查询

Information Query of Topological 3D Geological Section Based on GIS Technique

煤矿三维地质剖面图的自动生成已有相关研究,但是缺乏剖面图中地层与断层、陷落柱等拓扑关系的考虑及进一步针对剖面图的应用。针对这一问题,提出了三维地质剖面图数据拓扑分析的算法,利用地质剖面图中的拓扑关系,可以实现在剖面图中任意位置地层厚度查询、拾取点到含水层距离计算等功能,从而能够方便、快捷地获取三维地质剖面图中的信息,达到辅助煤矿现场分析的目的。

Ahhough the automatic generation system of three-dimensional geological sections was well studied and implemented, the topology relationship between stratum and fault or collapse column was lack of consideration, and the sections were generated without further practical applications. To solve this problem, a topology analysis algorithm of the three-dimensional geological section data is proposed, and some useful functions, such as those querying the stratum thickness, calculating the shortest distance from the pickup point to the water-bearing stratum, are realized using the algorithm. The practical application in the Wangjialing coal mine shows the validity of the method.