Study on the Spatial Database Update of Urban Underground Pipelines

With the urban underground pipeline infrastructure developing,it needs to put forward the higher requirements for updating spatial database of the underground pipeline.Integrating with the actuality of management system of the urban underground pipelines,the paper mainly discusses dynamic updating of the underground pipeline database.The author firstly analyzed the problem of updating maintenance for the urban underground pipelines,and then gave a detailed introduction on the updating rules,essential conditions and methods.