Research on Control Measurement Technology for Long Distance and Small Radius Subway Shield Tunnels
The shield tunneling construction method is gradually being widely adopted in subway construction,but due to constraints such as shield tunneling equipment and tunnel linearity,the construction of long-distance and small radius curved subway shield tunnels is difficult.Taking the section between Ganguan Station and Qiandao Hujie Station on Shenyang Metro Line 3 as an example,a construction control meas-urement system was established for the long-distance small radius curve subway shield tunnel.The system was studied from ground control network measurement,underground control measurement,and shield tunneling attitude control,and ultimately solved the problem of high-pre-cision control measurement for long-distance small radius curve subway shield tunnels,which ensures the accurate excavation and smooth pen-etration of the shield tunnel.
subwaylong distance small radius curved subway shield tunnelshield postureconstruction surveying