掘进过程中盾构机姿态出现较大偏差的检核方法

摘要

结合工程实例，分析了盾构机掘进过程中，测量导向系统发生故障后盾构机姿态的测量方法，主要采用盾构机特征点测量、水平线分中法、拟合圆心法，测出了盾构机的姿态，通过综合比较三种方法的测量结果，得出了盾构机的实际姿态。%Combining with engineering examPles,the PaPer analyzes the shield machine Posture measurement method when the measurement and guidance system fails to work in shield machine digging Process,and measures shield machine Posture by aPPlying shield machine characteristic Point measurement,horizontal moderating method and simulating center algorithm method. Through comPrehensively comPares measurement re-sults of three kinds of methods,it finally obtains actual Posture of the shield machine.