地铁盾构测量的若干思考

Some Thoughts on the Metro Shield Measurement

为了保障地铁盾构隧道的顺利贯通,成型隧道线型与设计轴线相符,盾构施工测量必须认真仔细,严格控制各项误差。论文从日常的盾构测量工作出发,结合工程实际经验,引出并探讨地下控制测量起算依据、盾构始发姿态测量方法等问题,并从中进行了思考,为后续盾构测量问题分析提供一定的参考。

In order to ensure the smooth penetration of metro shield tunnel,and the alignment of the shaping tunnel is consistent with the design axis,we must conscientiously and carefully carry out the shield construction survey and strictly control various errors.Starting from the daily shield measurement work and combined with the practical engineering experience,this paper introduces and discusses the calculation basis of underground control measurement and the measurement method of shield starting attitude,and makes some reflections,so as to provide some reference for the analysis of the following shield measurement problems.