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为解决城市地质中的基于剖面的浅层地质体建模过程中的地质剖面自动对比问题,实现3维地质体模型的动态重构与局部更新,将3维拓扑推理引入3维地质建模,通过剖面投影方法在3维空间曲面上实现拓扑关系的自动构建与推理,提升地质剖面对比维数,提高地质剖面自动对比自动化程度,实现城市地质中3维层状地质体动态建模。该方法已应用于南京城市地质3维建模中,结果表明该方法适应多种剖面数据,提高了地质空间3维建模效率。
In order to solve the problem of automatic comparison of geological sections in the modeling of shallow geological formations based on profile in urban geology and realize the dynamic reconstruction and local updating of 3-D geological model, the 3-D topological reasoning is introduced into 3-D geological modeling, Through the method of profile projection, the topological relations are automatically constructed and inferred in the 3-D space surface, the contrast dimension of the geological profile is improved, the degree of automatic contrast of the geological profile is improved, and the 3-D layered geologic body dynamic modeling is realized. The method has been applied to the 3D modeling of urban geology in Nanjing. The results show that this method can adapt to many kinds of profile data and improve the 3D modeling efficiency of geological space.