【作者】 高飞；

【导师】 吴小平；

【作者基本信息】 华中科技大学 ， 道路与铁道工程， 2007， 硕士

【摘要】 在市政工程排水设计中,水力计算是不可缺少的一部分,它直接确定了各段管线在施工中需采取的管径、坡度和雨污水在管中的流速,从而也影响到了管网施工的工程造价一系列的经济效益问题。而目前的水力计算的计算机程序只是一种代替手工计算、查表等一系列的繁琐、重复的管线计算程序,每次计算还是只能手动提取一条条管线,反复进行各种水力参数的输入,手动的上游雨水汇水面积和污水的上游流量的累加,在进行规模较大的管网计算中,计算起来将会异常繁琐。本文的研究目的就是建立一个排水管网水力计算系统来解决上述问题,建立管网中管线与管线的关联,应用到整个管网水力计算中,提高计算的自动化程度,减轻管网的水力计算的工作量以及提供管网信息查询的相关拓展功能。本文系统论述了市政排水管网系统的研究与开发的若干问题。本文主要内容简介如下:⑴运用了图论,把排水系统看作一个有向网络来研究,建立管网的拓扑结构,突破了目前水力计算只能以单独一根管线的为计算对象的局限性(创新处);⑵AutoCAD图形和数据库的关联,在水力计算中,通过图形直接读取管网数据信息,导入到水力计算程序进行计算;⑶采用广度优先算法(Breath First Search),进行管网路径的搜索;⑷把管网识别和GIS结合起来,做到对排水管网能方便地查询、维护和更新管网资料,使文字、图形资料与管网现状保持一致。本课题的研究成果,具有很强的现实意义。排水管网的识别系统的开发,这对于简化管网水力计算的工作量起到了突破性的作用。同时,该方法在排水管网的管理、分析、查询等系统上都将有重要的应用意义和价值。更多还原

【Abstract】 In the area of drainage pipeline design of municipal engineering, the water hydraulic calculation is an indispensable part, it decides the tube path, slope and water velocity of each pipeline, it also influences the pipeline net construction price.But current computer program of water hydraulic calculation is just a kind of work to replace the calculation and checking form by hand. This work is very onerous, because it only can calculate one pipeline every time. It will be excrescent tedious in carrying on the bigger size pipeline net calculation.So it is very essential to establish a network of hydraulic calculation of the drain system to solve these problems. This paper discussed the municipal sewer system for research and development in a number of problems.The innovational points of this research are:(1)Using graph theory, the research takes drainage system as a network. It breaks the limitation of the calculation for the separate pipeline in the current hydraulic calculation.⑵AutoCAD graphics and the database link in the hydraulic calculations, reading graphics data directly into database;⑶Using Breadth first search algorithm to search pipeline path in drainage network;⑷Making GIS thought into drainage network calculation to complete management, analysis and inquiries of drainage pipe network .After all, the results of this research have a important practical significance. The development of drainage network recognition system which can simplify the hydraulic calculation of the drainage network has played a breakthrough role. Meanwhile, the methods of drainage network management, analysis, inquiries system will have important applications significance and value.更多还原