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关中盆地水文地质结构三维建模与可视化

发表时间:2018-03-30  浏览量:1005  下载量:135
全部作者: 张渭军
作者单位: 长安大学地球科学与资源学院;堪萨斯大学地理系
摘 要: 结合水文地质空间结构的特点,在建立水文地质数据库的基础上,提出多层数字高程模型(digital elevation model,DEM)-类三棱柱(analogic tri-prism,ATP)的面体混合空间建模方法,实现对水文地质空间结构的三维建模。该方法发挥了多层DEM模型便于实现层状结构体建模与模型更新、体模型擅长复杂地质结构体建模和清晰描述三维空间拓扑关系的特长,并运用于关中盆地水文地质三维空间的构建与可视化。结果较好地表达了关中盆地第四系地层、含水层的三维空间真实形态。由任意空间剖切生成的剖面图较正确地揭示了关中盆地水文地质空间结构在空间的分布规律。
关 键 词: 水文学;多层数字高程模型-类三棱柱;三维建模;关中盆地;剖切
Title: 3D modeling and visualization of hydrogeological structure in Guanzhong basin
Author: ZHANG Weijun
Organization: School of Earth Science and Resources, Chang’an University; Department of Geography, The University of Kansas
Abstract: This paper proposes the multilayer digital elevation model (DEM)-analogic tri-prism (ATP) modeling method for face-body mixed space based on hydrogeological database and spatial structure, to achieve 3D hydrogeological modelling. The method not only plays the advantages of DEM for layer structure body modeling and model updating, and the advantages of body model for complex geological structure body modeling, but also is easy to describe the advantages of 3D topological relationship clearly. Finally, it is applied for Guanzhong basin 3D modeling and visualization. The result better expresses the real 3D spatial morphology of quaternary and aquifer. Profile by arbitrary space sectioning reveals the distribution regularity of hydrogeological structure of Guanzhong basin correctly.
Key words: hydrology; multilayer digital elevation model-analogic tri-prism; 3D modeling; Guanzhong basin; section
发表期数: 2018年3月第6期
引用格式: 张渭军. 关中盆地水文地质结构三维建模与可视化[J]. 中国科技论文在线精品论文,2018,11(6):583-589.
 
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