The Application Of GIS Technoloty In City Underground Pipeline's Management

Underground pipeline is a kind of important basic establishment of a city.It's safty running is the guarantee of modern city's efficiency and high quality running.The current urban underground pipeline data is the basic data of city planning, construction and management. Only after we have acquainted the underground pipeline data completely as quickly as more, we can exploitation the underground space. Such as offer entire basic data for the underground engineering's planning , design, construction and running management. Digital underground pipeline information plays great role in instituting feasible, technology advance and economic rational scheme of city planning ,designing and management. So digital management of city underground pipeline is a indispensable part of modern city management. But for some reason, there are some questions in underground pipeline's management. For example, because of the lack or warp of current underground pipeline data and the low efficiency of traditional management method, the pipeline has often been destroyed in underground engineering and then leads to cut off water supply, power cut, communication broken. And sometimes road or pipeline engineering can not be carried out according to design and so the change of design plan always happens.Firstly this paper discussed some basic concepts of GIS and it's use in the management of underground pipeline. It also analyze thenecessarity and feasibility of building underground pipeline management system. It discussed the key technology of underground pipeline management system's development: COM technology , integrative management technology of spatial data and attribute data and 3D pipeline display technology. Then, combined with the case of building FoShan underground pipeline management system, the paper expatiated on the whole system building process: system design, database design, pipeline data model and data organizing, system exploitation plan choosing and system graphic symbolization plan. It may be a reference to building other city's underground pipeline management system.