淹没三维模型在延庆四海镇滨水绿道规划设计中的应用研究

Research on Application of 3D Flood Model to Planning and Design of Waterfront Greenway in Sihai Town, Yanqing County

淹没三维模型的分析方法在滨水绿道规划设计中逐渐成为重要的前沿技术手段。在滨水绿道规划设计时,淹没三维模型不仅能对洪水淹没区和相关湿地区域进行明确分析,并能在规划设计中确定功能布局、景观结构及交通系统给予科学可靠的支撑。本文介绍了建立淹没三维模型的方法,通过利用研究区域的数字高程模型(DEM)和遥感影象数据,并结合GIS和Google Sketchup等软件对其进行三维场景仿真,然后根据当地水文信息分析得出洪水水位高程值,最后通过设置该区域淹没范围,综合分析得出滨水绿道规划设计的功能布局和景观结构的重要数据支撑。本文结合实际案例介绍了在延庆四海镇的滨水绿道的规划设计中,如何将淹没三维模型应用在滨水绿道的规划设计前期的实践过程,并且总结了淹没三维模型的应用方法及技术优势。

Analysis methods based on 3D submerged model in waterfront greenway landscape planning and design have been the important technical means at the forefront. When in the waterfront greenway landscape planning and design, 3D submerged model can not only analyze the area that has been flooded as well as that wetland area clearly but also help to determine the functional layout, landscape structure and transport system to offer the scientific andreliable support. This thesis covers the way to build the 3D submerged model and also tells us how to make use of the DEM and RS on the area that will be analyzed via GIS and Sketchup for3D scene simulation, and then to get the water level information about the area based on the local hydrological information. At last, with those results combined, the submerged area can be set the region covered rangeand help toanalyze the functional layout in the waterfront greenway area and also help to provide the important data for landscape structure planning.This thesis also introduces an example on the waterfront greenway landscape planning and design in Sihai town Yanqing district which covers the process of the waterfront greenway landscape plan and also summarizes the paths to make full use of the 3D submerged model and the advantages of this scientific analysis method.