Urban Underground Pipeline Measurement And Automated Mapping

As an important part of urban infrastructure,underground pipelines can provide an important data foundation for digital city construction.This paper studies the municipal pipelines in the main urban area of Tangshan City,and evaluates the analysis methods and accuracy of underground pipelines such as water supply,water,communication and electric power,and compares the advantages and disadvantages of various pipeline exploration instruments.It can realize the standardization,scientificization and automation of underground pipeline information and business management,and improve the automation and informationization level of underground pipeline management.According to the current use frequency and cost performance of the probe instrument on the market,the electromagnetic pipeline instrument is selected as the main exploration means.The accuracy of the pipeline position and depth of the pipeline is analyzed,and the pipeline database is established to realize the spatial location and attribute information of the pipeline data.Management,convenient and rapid update and improvement of urban underground pipe network information.The research shows that the data measurement accuracy of the underground pipeline can reach 0.22m;the positional accuracy of the electromagnetic pipeline instrument can reach 0.07 m,and the buried depth accuracy is 0.15 m.The establishment of the underground pipeline database completes the summary of the pipeline data space location information and attribute information,and realizes the integrated management of pipeline information.Based on the underground pipeline database,the APIS professional pipeline software completes the data processing and summary statistics of the pipeline data,automates the editing process of the professional pipeline diagram,and simultaneously uses the VBA technology to carry out the secondary development of Auto CAD,realizing the automatic framing of the graphics to achieve the mosaic of the city pipe network data.Figure37;Table17;Reference 47...