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.
关键词
地铁/长距离小半径曲线地铁盾构隧道/盾构姿态/施工测量
Key words
subway/long distance small radius curved subway shield tunnel/shield posture/construction surveying