Research on Key Technology of 3D Scanning Section Monitoring of Saudi Arabia NEOM Tunnel Project
Based on the construction scheme of the NEOM tunnel branch project in Saudi Arabia and the functional characteristics of the 3D scanner,this paper proposes a set of methods and processes for monitoring the construction section using the Norwegian Method of Tunneling by combining high-precision 3D scanning with BIM technology,and verifies its scientificity and reliability in practical application.The excavation support workflow was established,and the section scanning specification requirements were clarified.The overall goal of 3D scanning section monitoring was formulated.The hardware and software used and the main process of monitoring were determined.The method flow for scanning data acquisition and processing was described in detail.The process of scanning section analysis and report generation was mainly studied.The scanner and total station monitoring data,point cloud and BIM model were compared and analyzed,and the monitoring results were evaluated.The research shows that the 3D scanning technology can fully meet the requirements of tunnel construction section monitoring using the Norwegian method of tunneling,whose monitoring accuracy and efficiency are much better than the traditional monitoring methods.
tunnels3D scanningmonitoringbuilding information modeling(BIM)point cloud
NETL
NSTL
万方数据
维普
