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| Sources of Errors and Deformation Analysis of Laser Scanning Based Tunnel Deformation Monitoring |
| LIU Shao - tang, PAN Guo – rong |
| Tongji University, Shanghai 200092 , China |
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Abstract Research purposes : Using error analysis theory and engineering experimental research methods, This paper firstly，introduces the ranging tunnel deformation monitoring process of three - dimensional laser scanning technology used in the tunnel environment, and then discusses the errors and their characteristics caused by ranger, scanner goniometer, environmental impact, and data processing. Next, studies the sensitivity of the experimental factors to tunnel deformation analysis. Finally summarizes the sources of error and influence of the three - dimensional laser scanning technology used in the tunnel environment deformation monitoring.
Research conclusions :(1) The study showed that there are lots of enxo souces in tunnel deformation monitoring used 3D laser scanner and the ee'ors caused by ranger, scanner goniometer, environmental impact, and data processing can be be weakened or controlled with appropriate measures. (2 ) Though changes in the diameter of the tunnel, the tunnel profile disturbance frequency and tilt do not affect the deformation monitoring error , but system noise and random noise affect deformation monitoring error greatly. ( 3 ) As long as the shielding rate is less than 60% , the deformation monitoring analysis and error analysis methods are effective for large number of obscured data sets. (4) The research results can be used in tunnel safety monitoring.
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Received: 28 January 2013
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[1]刘绍堂.P4000断面仪及其应用[J].河南水利，1998 (1) :36 - 37.
Lin Shaotang. P4000 Profiler and Its Application [ J]. Henan Water Resources，1998(1) :36 -37.
[2]张作义.超浅埋超高断面暗挖隧道地层变形控制技术 [J].铁道工程学报，2009 (5):74 -79.
Zhang Znoyi. Control Technology for Strata Deformation of Ultra - shallow - buried and Ultra - high Sectional Tunnel with Underground Excavation [J]. Journal of Railway Engineering Society，2009 (5)： 74-79.
[3]罗德安,朱光，陆立,等.基于3维激光影像扫描技术的整体变形监测[J].测绘通报，2005(7) :40 - 42.
Luo Dean, Zhu Guang，Lu Li, etc. The Overall Deformation Monitoring Based on 3 - D Laser Scanning Technology [ J]. Bulletin of Surveying and Mapping, 2005 ( 7):40 - 42.
[4]白廷义.基于激光扫描数据的隧道曲面重建技术研究 [D].济南：山东科技大学，2010.
Bai Tingyi. Tunnel Surface Reconstruction Technology Based on Laser Scanning Data [ D]. Jinan； Shandong University of Science and Technology ,2010.
[5] Fekete S, Diederichs M, Lato M. Geotechnical and Operational Applications for 3 - dimensional Laser Scanning in Drill and Blast Tunnels[ J]. Tunneling and Underground Space Technology,2010(5) :614 - 628.
[6]托雷.基于三维激光扫描数据的地铁隧道变形监测 [D].北京:中国地质大学(北京），2012.
Tuo Lei. Based on 3D Laser Scanning Data Subway Tunnel Deformation Monitoring [ D]. Beijing： China University of Geosciences (Beijing)，2012.
[7]李健,万幼川，江梦华,等.基于地面激光技术的隧道变形监测技术[J].地理空间信息，2012(1 )：14-17.
Li Jian，Wan Youchuan, Jiang Menghua, etc. Based Terrestrial Laser Technology Tunnel Deformation Monitoring [ J ]. Geospatial Information，2012 (1)： 14-17.
[8] Delaloye D. Development of a New Methodology for Measuring Deformation in Tunnels and Shafts With Terrestrial Laser Scanning ( Lidar) Using Elliptical Fitting Algorithms [ D]. Ontano： Queen s University， 2012.
[9]齐建伟，朱恩利.三维激光扫描测量内符合精度试验研究[J].地理空间信息，2012(4) :20-22.
Qi Jianwei, Zhu Enll. Three - dimensional Laser Scanning Accuracy Test [ J]. Geospatial Information, 2012(4) :20 - 22.
[10]郑小宁,刘军平.三维激光扫描的应用与精度分析[J].地理空间信息,2008( I ):132 -134.
Zheng Xiaoning1 Liu Junping. Application and Accuracy Analysis of Three - dimensional Laser Scanning [J]? Geospatial Information ,2008(I) ： 132 - 134.
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2013, Vol. 30 
