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测绘学报  2015 

基于激光点云的隧道断面连续提取与形变分析方法

DOI: 10.11947/j.AGCS.2015.20140632, PP. 1056-1062

Keywords: 地铁隧道,断面提取,形变分析

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Abstract:

地铁施工、运营阶段的监控量测,可有效保障隧道结构的稳定与周围环境的安全。现有的收敛计、全站仪等变形监测手段,虽然可以得到高精度的观测数据,但获取的监测点位过于稀疏,难以全面反映隧道整体的形变特征。本文将三维激光扫描技术用于地铁隧道形变监测,提出了基于激光点云的隧道断面连续提取与形变分析方法,并对提取的两期断面进行了形变分析,试验结果表明该方法能够更直观地表现隧道整体变形,研究成果可为隧道形变动态监测提供借鉴。

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