Research on Digital Construction and Monitoring Management of Extra-Large Volume Earthworks
For the difficulties in the construction management of extremely large-scale earthwork projects and the uncertainty risks brought to the safety of foundation pits and surrounding buildings,a BIM-oriented digital management method for earth excavation,transportation and monitoring is proposed to achieve efficient excavation-transportation organization and accurate foundation-pit-monitoring linkage.Firstly,based on the excavation plan,unique codes are assigned to earthwork units to establish a mapping relationship between the foundation pit site and the BIM model.Simultaneously,the earthwork units are bound to earthwork vehicles to track the location,time,and weight of the entire earthwork transportation process,realizing the integrated management of digital earth excavation and transportation.Furthermore,based on the established earthwork BIM model,the excavation information and monitoring data on the actual site are correlated to achieve dynamic integration of working conditions,deformation and precipitation data.The proposed method has been successfully applied in a practical extremely large underground project,providing digital management ideas and technical paths for the smooth implementation of the project.
building information modeling(BIM)earthwork excavationearthwork transportfoundation pit monitoringdigital management
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