长区间地铁盾构隧道平面贯通误差的控制与实施  

Control and Implementation of Plane Through Error of Long Section Metro Shield Tunnel

作　　者：韩昀 王新安 刘欣 HAN Yun;WANG Xinan;LIU Xin(Hubei Electric Survey and Design Institute Co.,Ltd.,Wuhan 430040,China)

机构地区：[1]湖北省电力勘测设计院有限公司,湖北武汉430040

出　　处：《电力勘测设计》2023年第S01期166-171,共6页Electric Power Survey & Design

摘　　要：长区间地铁盾构隧道贯通是地铁施工的关键点与难点,根据工程实际列出几种常见地下控制网布设方法,研究贯通误差的估值,分析贯通误差的要点,提出一种地下控制网布设与测量的方法。以武汉某地铁隧道为例,证明该方法灵活适用,可有效提高作业效率和测量精度,能够适用于较长区间地铁隧道平面控制测量,并对长区间地铁盾构隧道平面控制测量提出一些建议。The cut-through of shield tunnel in long section is the key point and difficulty of subway construction.This paper lists several common underground control network layout methods according to the actual situation of the project,studies the estimation of the cut-through error,analyzes the key points of controlling the cut-through error,and puts forward a method of underground control network layout and measurement.Taking a subway tunnel in Wuhan as an example,it is proved that this method is flexible and applicable,can effectively improve the operation efficiency and measurement accuracy,and can be applied to the plane control survey of the long section subway tunnel.Some suggestions are also put forward for the plane control survey of the long section subway shield tunnel.

关 键 词：盾构隧道 贯通误差 测角中误差 地下控制网 

分 类 号：P2[天文地球—测绘科学与技术]