长距离地铁隧道限界快速测量方法研究  

Research on rapid measurement method of long distance subway tunnel boundary

作　　者：杨书泉 Yang Shuquan(China Railway 18th Bureau Group No.1 Engineering Co.Ltd,Baoding 072750,China)

机构地区：[1]中铁十八局集团第一工程有限公司,河北保定072750

出　　处：《工程勘察》2022年第3期57-61,共5页Geotechnical Investigation & Surveying

摘　　要：地铁限界测量是保障地铁安全运行的重要环节,为后续的铺轨等工作提供基础数据。常规的断面仪方法、全站仪方法在对长距离隧道进行检测时,存在采集信息有限、作业效率低下等问题。针对这些问题,采用一种基于三维激光扫描仪的限界检测方法,三维激光扫描仪可以在较短时间内获得充足的点云数据。根据对长距离隧道限界测量的应用分析,三维激光扫描仪方法与全站仪方法测量结果基本一致,但三维激光扫描仪方法的准确性和可靠性更高,并且外业效率更高。The measurement of subway boundary is an important link to ensure the safe operation of subway,which provides basic data for the follow-up work such as track laying.There exist some problems such as limited collection information and low working efficiency in the sectional method and total station method.To solve these problems,a boundary detection method based on 3 D laser scanner is adopted.3 D laser scanner can obtain sufficient point cloud data in a short time.Based on the analysis of the application of the long distance tunnel boundary measurements,the results obtained by the 3 D laser scanner and the total station method are basically consistent.But the 3 D laser scanner method is more accurate and reliable,and the field work efficiency is also higher.

关 键 词：限界测量 三维激光扫描仪 准确性 可靠性 效率 

分 类 号：P225.2[天文地球—大地测量学与测量工程]