【作者】 张希雨；

【导师】 李云峰；

【作者基本信息】 长安大学 ， 地下水科学与工程， 2009， 硕士

【摘要】 近年来,三维地质建模与可视化技术发展迅速,并已成为地学领域的研究热点之一。利用三维地质建模与可视化软件的强大功能,可以构建三维水文地质结构可视化模型,从而清晰地展示地质、水文地质的空间结构信息并实现可视化。然而,相对于三维地质建模与可视化技术在地质领域的应用来说,其在水文地质领域的应用比较晚、也不很广泛。作为三维地质建模与可视化技术在水文地质领域应用的一次尝试,本文以西安为研究区,通过系统地分析、整理研究区内前人的地质、水文地质研究成果,利用先进的三维地质建模软件—环境可视化系统软件EVS-Pro(Environmental VisualizationSystem),首次构建了西安三维水文地质结构可视化模型。该模型具有的主要功能如下:(1)可以全方位、多角度地展示西安三维水文地质结构体整体形态并实现三维可视化。(2)可以演示西安单个含(弱透)水层的三维结构,详尽地展示各个含(弱透)水层的构造形态并实现三维可视化。(3)可以展示任意X处(公里网坐标横坐标)的南北向剖面、任意Y处(公里网坐标纵坐标)的东西向剖面。(4)可以生成由多个X处的南北向剖面、多个Y处的东西向剖面组合而成的三维可视化栅栏图,从而清楚地显示西安三维水文地质结构可视化模型内部的各个细节。通过构建的西安三维水文地质结构可视化模型,不仅可以直观地分析西安地下水的赋存空间,还可以对西安地下水开采(尤其是承压水开采)与开采引起的西安地面沉降等地质环境灾害之间的关系进行分析,为准确地评价、规划和管理西安的地下水资源打下重要的水文地质基础。更多还原

【Abstract】 In recent years, three-dimensional geological modeling and visualization is developing rapidly and has become a hot research field of the earth science. Using the power of the three-dimensional geological modeling and visualization software, we can build a three-dimensional hydrogeological structure visualization model. The model can clearly display the spatial structure information of the geology and hydrogeology and achieve visualization. However, the appliance of the three-dimensional geological modeling and visualization in the field of hydrogeology is later and not very extensive, compared with its appliance in the field of geology.This paper is an attempt of the three-dimensional geological modeling and visualization in the field of hydrogeology. In this paper, xi’an is the study area.We analyze the previous geological and hydrogeological research results of the study area, firstly build the three-dimensional hydrogeological structure visualization model in xi’an, using the advanced three-dimensional geological modeling software—Environmental Visualization System(EVS-Pro). The main functions of the model are as follows:(1) The model can omni-directionally and multi-angle display the overall shape of the three-dimensional hydrogeological structure model in xi’an and achieve its three-dimensional visualization.(2) The model can display the three-dimensional structure of the single aquifer (weak permeability) in Xi’an and achieve its three-dimensional visualization.(3) The model can display the north-south profile at any X position (Km network coordinates abscissa) and the east-west profile at any Y position (Km network coordinates ordinate).(4) The model can also generate the three-dimensional visualization fence diagrams by the combination of profiles at many X and Y positions. It can clearly show the internal details of the three-dimensional hydrogeological structure visualization modle in Xi’an.By the three-dimensional hydrogeological structure visualization model in xi’an, we can not only directly analyze Xi’an geological structure with groundwater, but also can analyze the relations between the exploitation of Xi’an groundwater, especially the confined water and the land subsidence caused by the exploitation of groundwater. The model lay an important hydrogeological basis for the accurate assessment, planning and management of the groundwater resources in Xi’an.更多还原