CAJ | 학술논문

地铁主体施工完毕后为了对线路进行调线调坡，需要对地铁隧道进行断面测量，三维激光扫描与常规测量方法相比具有非接触式测量，可高密度采集空间三维点云数据等特点，为地铁断面测量提供了新的途径。本文基于Leica Scanstation 2扫描仪分析了三维激光扫描点云数据采集步骤和数据处理流程，阐述了基于点云数据的地铁断面测量方法，分析了三维激光扫描技术在隧道断面测量中应用的可行性。研究结果表明，这种高密度、高精度的隧道断面能够满足地铁调线调坡等方面的技术要求。
지철주체시공완필후위료대선로진행조선조파，수요대지철수도진행단면측량，삼유격광소묘여상규측량방법상비구유비접촉식측량，가고밀도채집공간삼유점운수거등특점，위지철단면측량제공료신적도경。본문기우Leica Scanstation 2소묘의분석료삼유격광소묘점운수거채집보취화수거처리류정，천술료기우점운수거적지철단면측량방법，분석료삼유격광소묘기술재수도단면측량중응용적가행성。연구결과표명，저충고밀도、고정도적수도단면능구만족지철조선조파등방면적기술요구。
After the construction of subway main structure , in order to realize route adjustment of alignment and gradient , it needs to survey the profile of subway tunnel .Compared with conventional measuring methods , 3D laser scanning has the characteristics of non-contact measurement and can collect space 3D point cloud data with high density , this provides a new way for the subway profile measurement.Based on the Leica Scanstation 2 scanners this paper analyzed the 3D laser scanning point cloud data collection proce-dures and data processing , expounded the subway profile measurement method based on point cloud data ; analyzed the feasibility of 3D laser scanning technology in the application of tunnel profile measurement .The results show that the profile measured by this meth-od can meet the technical requirements of route adjustment of alignment and gradient .