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以向家坝水电站VII坝址为例,讨论了三维地质建模的几个关键问题及其处理方法:①多源数据的整合方法;②采用Laplace插值点和原始数据点共同构造地质曲面的方法;③基于裁剪的近层状地质体的构造方法。展示了向家坝VII坝址三维地质模型在显示、自动成图、虚拟现实漫游和三维数值计算等方面的应用效果。
Taking the dam site of Xiangjiaba Hydropower Station VII as an example, several key problems of 3D geological modeling and their treatment methods are discussed: ① the method of integrating multi-source data; ② the method of using Laplace interpolation points and original data points to construct the geological surface together ; ③ based on the structure of the method of cutting near-bedded geological body. The application results of 3D geologic model of Xiangjiaba VII dam site in display, automatic mapping, virtual reality roaming and three-dimensional numerical calculation are demonstrated.