三维激光扫描技术在城市轨道交通领域的应用  

The application of 3D laser scanning technology in the field of urban rail transit

作　　者：肖青怀 李泳慧 申斌[1,2] 张景春 陈庆来 张龙龙[1,2] XIAO Qinghuai;LI Yonghui;SHEN Bin;ZHANG Jingchun;CHEN Qinglai;ZHANG Longlong(Beijing Urban Construction Exploration&Surveying Design Research Institute Company Limited,Beijing 100101,China;Beijing Key Laboratory of Geotechnical Engineering for Deep Foundation Pit of Urban Rail Transit,Beiing 100101,China)

机构地区：[1]北京城建勘测设计研究院有限责任公司,北京100101 [2]城市轨道交通深基坑岩土工程北京市重点实验室,北京100101

出　　处：《北京测绘》2024年第2期183-188,共6页Beijing Surveying and Mapping

基　　金：国家重点研发计划(2021YFC3000504);国家自然科学基金(41930535)。

摘　　要：为验证三维激光扫描技术在城市轨道交通领域初支断面、建筑结构限界、管片姿态、椭圆度等检测项目中的测量精度与作业效率,文章通过新型免标靶三维激光扫描仪搭配相应商用软件与传统全站仪法进行比对。结果表明:在初支断面、建筑结构限界测量时,三维激光扫描技术可满足实际工程需要,在数据完整性和侵限点漏判方面具有一定优势;在管片姿态、椭圆度测量时,三维激光扫描技术可精确地建立三维数据模型,提供真实、准确的管片姿态和椭圆度。通过实验可以看出,三维激光扫描技术在轨道交通工程的优势,为其技术的应用和推广提供了一定参考。To verify the measurement accuracy and operation efficiency of three-dimensional(3D)laser scanning technology in the detection items of initial support section,building structure boundary,segment attitude,and ovality in the field of urban rail transit,this paper compared the new target-free 3D laser scanner with the corresponding commercial software with the traditional total station method.The results show that the 3D laser scanning technology can meet the needs of practical engineering when measuring the initial section and the boundary of the building structure,and it has certain advantages in data integrity and missed detection of intrusion points.In the measurement of segment attitude and ovality,3D laser scanning technology can accurately establish a 3D data model to provide real and accurate segment attitude and ovality.The experiments show that 3D laser scanning technology has advantages in rail transit engineering,which can provide a certain reference for the application and promotion of its technology.

关 键 词：三维激光扫描 轨道交通 测量检测 建筑限界 椭圆度 

分 类 号：P258[天文地球—测绘科学与技术]