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结合南京市城市地质调查信息系统项目,将虚拟钻孔引入到地层连接对比过程中,借用广义三棱柱数据模型,实现了地层连接的自动推理和地质体建模。从钻孔数据建模的难点分析入手,介绍了基于钻孔的地表不规则三角形网的生成方法,重点介绍了将虚拟钻孔引入到地层尖灭情况下的地层对比连接算法,最后介绍了该方法在实际应用过程中的情况。该方法能够实现地层连接的自动推理分析,实现地质体的自动建模,减少人工交互建模的工作量。
Combined with Nanjing Urban Geological Survey Information System project, the virtual drilling is introduced into the process of stratigraphic connection comparison. By using the generalized triangular prism data model, the automatic geological formation connection and geological body modeling are realized. Beginning with the difficulty analysis of the modeling of borehole data, this paper introduces the method of generating irregular triangular mesh based on the borehole, and introduces the stratum contrast connection algorithm which introduces the virtual borehole into the stratum. Finally, Method in the actual application of the situation. The method can realize the automatic reasoning and analysis of the formation connection, realize the automatic modeling of the geological body and reduce the workload of the artificial interaction modeling.