作　　者： (李书映）; (刘量）;

机构地区： 中铁十二局集团第七工程有限公司,湖南长沙410004

出　　处： 《铁道建筑技术》 2017年第8期88-92,96,共6页

摘　　要： 本文结合SG2标盾构段施工测量方案和实际测量工作,从控制测量、联系测量、盾构机姿态测量等方面介绍了微型盾构施工各环节测量控制技术,估算了隧道总贯通中误差。通过测量成型管片姿态误差和隧道贯通误差,验证了施工测量控制的有效性。最后,文章对施工测量注意事项进行总结,提出了提高测量精度的方法和措施。 Based on measurement plan and actual operation of the Lot SG2 shield section construction,the measurement and control technology of mini shield construction was elaborated from the aspects of control survey,connection survey and survey of attitude of shield machine. The tunnel transfixion error was also estimated. It was verified that the measurement and control technology was of high effectiveness by measuring the segment’s attitude error and the tunnel transfixion error.Finally,this paper summarized the matters needing attention in the construction survey,and put forward the methods to improve the measurement accuracy.

关 键 词： 微型盾构 测量控制技术 误差估算