【作者】 刘娟；

【导师】 王耀强； 史明昌；

【作者基本信息】 内蒙古农业大学 ， 农业水土工程， 2006， 硕士

【摘要】 黄土高原水土流失治理的重点在多沙粗沙区,淤地坝是实现治理目标的关键措施。然而流域内淤地坝的规划设计是一项复杂工程,传统方法规划设计淤地坝不但费时、费力且精度低、成本高。一方面坝系整体调洪、数量的确定技术难度大,另一方面,小流域坝系中单坝的设计必须综合考虑上下游坝的防洪标准、枢纽组成、建设顺序、淤积年限等情况,才能保证坝系的安全和稳定。本研究旨在探索结合GIS、CAD及传统水土保持技术,重点对淤地坝的规划设计进行优化,探讨规划设计过程中所涉及的指标、对象、技术路线以及分析模型。应用全站仪在规划区域的地表采集足够数量和密度特征点的三维坐标,在GIS软件Region Manager辅助下,建立流域数字高程模型(DEM)。基于数字高程模型应用GIS的空间分析功能,自动提取地形地貌数据。在三维仿真的DEM上进行坝系规划,在虚拟现实的沟道中以人机交互的方式进行单坝设计,利用CAD技术绘制输出工程图。并应用县南沟实例进行此研发系统与人工规划设计结果进行对比分析验证系统的可行性。更多还原

【Abstract】 Control of soil and water loss on the Loess plateau emphasizes on oversand and coarse sandy area, Silt-arrester dam is the key to the object. But dam designing in small watershed is a complicated engineering, usually, design with traditional method is labored and time consuming. On one hand, technological difficulty exists in determining the number and flood routing for dam system. On the other hand, for dam system security and stability, single dam’s designing should take flood control standard of dams, hinge composing, building sequence as well as years of filling up into account. The research mainly explore the method combining Geographic Information System (GIS), Computer Aided Design(CAD) and traditional technology of soil and water conservation to optimize the design of dams. Discussing the index, object, technological route and analysis models in the design process of dams. Collecting enough quantity and densities three-dimensional coordinates of characteristic points on the earth’s surface with total station. seting up the digital elevation model(DEM) with Region Manager. Extracting terrain data automatically with spatial analysis function of GIS, then plan the dam system on 3D simulating DEM, single dam is being designed in the virtual gullies by ways of humen-computer interaction, and output the engineering drawings. Comparison between designing by the system and manual work proves the feasibility of the silt- arrester designing system.更多还原