The application of Total Station in Deformation Monitoring of Shield Tunneling During Construction and Operation
In view of the structural deformation of the operating tunnel caused by the underpass construction of the new shield tunnel, an automatic monitoring system is constructed by using the total station to analyze and evaluate the accuracy of the monitoring data of the typical sections of the key nodes of the operating tunnel during the construction period. During the shield tunneling, the ballast bed settlement of the operating tunnel shows an overall lifting trend, the segment convergence shows an expansion trend, and the ballast bed displacement shows a trend of moving in the direction of shield propulsion. The accuracy of the automatic monitoring system is e-valuated by manual review, the results show that the overall deviation between automatic monitoring and manual review is within 1mm. The total station automatic monitoring system provides measurement technical support for subway operation safety risk assessment. Through the data analysis of a subway shield tunnel construction monitoring, the feasibility and effectiveness of the total station auto-matic monitoring system are verified.
total stationshield tunnelingoperating tunnelautomatic monitoring system
万方数据
维普
