【作者】 张谱；

【导师】 党志良；

【作者基本信息】 西安理工大学 ， 环境工程， 2008， 硕士

【摘要】 城市给水管网是支撑和保证城市居民生产、生活的重要基础设施。目前绝大多数城市采用传统人工管理方法已难以满足管网实际需要。通过GIS强大的数据可视化功能,以地形为依托,实现给水管网的可视、动态模拟,正确分析和全面了解系统运行情况,不仅能提高给水管网管理的效率、质量和水平,还可为城市给水管网的改建和扩建、运行、维护与管理提供科学依据和技术支持。本文以两个实际项目“陕西省府谷县给水管网优化设计”和“西安市给水管网系统水压可视化管理”为支撑,分析了目前城市给水管网管理中存在的问题,根据GIS技术和城市管网可视化的国内外研究进展,利用ArcGIS平台,进行了城市给水管网的三维可视性研究。其研究内容主要包括:(1)利用ArcGIS中数据组织方式Shapefile存储空间数据,创建Microsoft Access数据库管理属性数据,通过公共数据项Object ID建立实时匹配关联,实现图属数据库的一体化连接;利用VB进行城市给水管网三维可视系统的界面设计,并实现了编辑、查询、统计、可视性分析、打印报表等功能。(2)根据陕西省府谷县城区给水管网区域地形情况,建立GIS数字高程模型,利用MapGIS软件进行数据校核,同时在ArcScene模块中以三维图形直观显示了府谷县城区“水源地→一水厂→二水厂”地形,并根据地形情况设计了管网支线的铺设,实现了地形与管网的叠加,明确了管网的具体位置。(3)在运行工况下,通过分析管网的压力特征,依靠西安市给水管网范围内42个测压点的压力实时监测数据,将ArcMap与Raster 2 Vector(R2V)矢量化软件相结合,实现了集平面标注图、二维着色图、三维立体图为一体的管网水压三维透视图,直观反映了管网的运行情况。(4)在设计工况下,根据水力计算结果,利用Surfer软件对府谷县城区给水管网在现状年、近期、远期三个阶段中,最大转输时、最大消防时、最不利管段损坏时三种工况下的节点压力进行二维分区、着色显示,模拟管网水压分布状态,并进行了可视性分析,为府谷县自来水公司进行城区近远期管网改扩建设计提供参考依据。更多还原

【Abstract】 City water supplying network is the most important infrastructural facilities by supporting and guaranteeing the manufacture and the lives of the city residents. Currently the great majority city adopt a traditional artificial management’s method already hardly satisfy the supplying network effective demand. Based on the visual function of GIS and supported by landform, it can achieve the visual and dynamic simulation. Correct analysis and finding out about systematic running situation in an all-round way,it can not merely improve the efficiency,quality and level of management of pipe network. And also provide scientific basis and technical support for renovation and extension, running, maintenance,management of water pipe network for the city in the future.This paper are supported by two projects: the optimization design of water supplying network in Fugu county of Shaanxi province,and the Visual management about the pressure of water supplying network in Xi’an city. According to the study process on GIS and the visualization of pipe network domestic and international, and using the ArcGIS,it analyzes the problems in the city water supplying network management,and studies the 3D visualization of city water supplying network. The main achievements made in the study are as follows:(1) Using the ArcGIS,it can deposit the spatial data as shapefile. The attribute data are carried out by Microsoft Access. And the incorporate concatenation of them is achieved by Object ID. The interface is designed by VB. Based on that,the main function of management comes true, including:editing, searching, statistic,visual analyses and report forms.(2) Based on the area of landform about water supplying network in Fugu county of Shaanxi province,the Digital elevation model is established,the data are checked in MapGIS and the landform(Water Source Field→the first waterworks→the second waterworks)are showed by 3D figure in ArcScene. On this condition,the laying of the branch of pipe network are come true,it also achieves superposition between the landform and pipe network,and it nails down the detailed position about the pipe network.(3) On the running condition,analyzing the hydraulic character about pipe network and utilizing the measured pressure data for 42 points,using the ArcGIS in GIS technique,they combine ArcMap with Raster 2 Vectors(R2V)vector software, and carry out gathering flat surface marking diagram,two dimensional color diagram and 3D diagram as the integral whole 3D water pressure perspective diagram of the network. Finally,the running of pipe network is reflected directly.(4) On the designing condition,according to the result of hydraulic calculation,there are three phases and three working conditions,including:current year,recent year, long-term year and the maximum hourly water consumption when it is transferring, the maximum hourly water consumption when it is fire protection,the maximum hourly water consumption when the pipe are spoiled in the worst situation. On this basis it achieves the 2D subarea and pigmentation display about water pressure. The simulation of water pressure distributing and the visual analyses comes true by sufer,For waterworks in Fugu county,it also offers the referenced gist to put up the design on renovation and extension in city.更多还原