基于GIS的燃气管网爆管分析算法优化及系统建立  

Optimization of Gas Pipe Network Burst Analysis Algorithm Based on GIS and Establishment of Related System

作　　者：李敬唐 LI Jing-tang(Maoming Institute of Natural Resources Exploration and Mapping,Maoming Guangdong 525000,China)

机构地区：[1]茂名市自然资源勘探测绘院,广东茂名525000

出　　处：《现代测绘》2024年第5期74-80,共7页Modern Surveying and Mapping

摘　　要：燃气管网是城市发展的生命线,燃气清洁、高效的性质使其快速融入了居民的生活生产中。但日常中很多因素可以导致燃气管网爆管,从而发生事故。利用GIS建立燃气爆管检测系统,实现爆管时阀门的检索和关停,以及分析出对周围地区的影响。在ArcMap实现数据准备,基于C#的Arc Engine进行二次开发,利用Microsoft Visual Studio作为开发工具,在ArcGIS创建好几何网络后,再自动生成逻辑网络。基于广度优先算法(Breadth First Search,BFS),将传统算法中的无向图改为有向图,实现对算法的优化,并以此实现上下游分析、爆管阀门关停、影响范围分析等功能,这是一种爆管检测和阀门关停的有效方法。该系统的应用,不仅可以减少燃气爆管发生时的人员伤亡和财产损失,也能降低燃气管网安全建设管理人员的工作强度。同时,该系统对于自来水、石油管道地理信息系统建设也有参考作用。Gas pipeline networks are the lifeline of urban development,and the clean and efficient nature of gas has made it an integral part of people’s daily lives and production.However,many factors can cause gas pipeline explosions,leading to accidents.By using GIS to establish a gas pipeline explosion detection system,it is possible to search for and shut down valves during explosions,as well as analyze the impact on surrounding areas.Data preparation is implemented in ArcMap,and Arc Engine is further developed based on C#.Microsoft Visual Studio is used as the development tool,and the geometric network is created in ArcGIS before automatically generating the logical network.The traditional algorithm’s undirected graph is changed to a directed graph using the breadth-first search algorithm,which optimizes the algorithm and enables the implementation of upstream and downstream analysis,valve shutdown during explosions,and impact range,among other functions.This is an effective method for detecting gas pipeline explosions and shutting down valves.The application of this system can not only reduce the number of casualties and property losses during gas pipeline explosions,but also reduce the workload of personnel responsible for gas pipeline safety construction and management.At the same time,this system can also serve as a reference for the construction of water and oil pipeline geographic information systems.

关 键 词：广度优化算法 GIS 燃气管网 燃气爆管 算法优化 

分 类 号：P208[天文地球—地图制图学与地理信息工程]