Railway Tunnel Clearance Inspection Method Based on 3D Point Cloud from Mobile Laser Scanning

Railway tunnel clearance is directly related to the safe operation of trains and upgrading of freight capacity. As more and more railway are put into operation and the operation is continuously becoming faster, the railway tunnel clearance inspection should be more precise and efficient. In view of the problems existing in traditional tunnel clearance inspection methods, such as low density, slow speed and a lot of manual operations, this paper proposes a tunnel clearance inspection approach based on 3D point clouds obtained by a mobile laser scanning system (MLS). First, a dynamic coordinate system for railway tunnel clearance inspection has been proposed. A rail line extraction algorithm based on 3D linear fitting is implemented from the segmented point cloud to establish a dynamic clearance coordinate system. Second, a method to seamlessly connect all rail segments based on the railway clearance restrictions, and a seamless rail alignment is formed sequentially from the middle tunnel section to both ends. Finally, based on the rail alignment and the track clearance coordinate system, different types of clearance frames are introduced for intrusion operation with the tunnel section to realize the tunnel clearance inspection. By taking the Shuanghekou Tunnel of the Chengdu–Kunming Railway as an example, when the clearance inspection is carried out by the method mentioned herein, its precision can reach 0.03 m, and difference types of clearances can be effectively calculated. This method has a wide application prospects.

[1]  R Wenty.  PLASSER'S IN SITU RAIL TREATMENT SYSTEM , 1980 .

[2]  Stuart Robson,et al.  Structural monitoring for the rail industry using conventional survey, laser scanning and photogrammetry , 2015 .

[3]  Mark P. Kumler.  An Intensive Comparison of Triangulated Irregular Networks (TINs) and Digital Elevation Models (DEMs) , 1994 .

[4]  Dwight P. Miller.  Distance and Clearance Perception Using Forward-Looking, Vehicular Television Systems* , 1988 .

[5]  Nicole M. Gasparini,et al.  An object-oriented framework for distributed hydrologic and geomorphic modeling using triangulated irregular networks , 2001 .

[6]  Qingguo Liang,et al.  Effect of Blast-Induced Vibration from New Railway Tunnel on Existing Adjacent Railway Tunnel in Xinjiang, China , 2012, Rock Mechanics and Rock Engineering.

[7]  Seh-Chan Oh,et al.  Vision-based object detection for passenger’s safety in railway platform , 2008, 2008 International Conference on Control, Automation and Systems.

[8]  Zujun Yu,et al.  Research on intrusion clearance detection system for high-speed railway based on binocular stereo vision , 2011, Proceedings of 2011 IEEE International Conference on Service Operations, Logistics and Informatics.

[9]  Hongmei Shi,et al.  Study on management information system of railway line clearance detection based on noncontact measurement technique , 2010, 2010 2nd International Conference on Industrial and Information Systems.

[10]  Vassilis Gikas,et al.  Three-Dimensional Laser Scanning for Geometry Documentation and Construction Management of Highway Tunnels during Excavation , 2012, Sensors.

[11]  Guo Yin.  Research on Calibration Method of Static Railway Vehicle Clearance Gauge , 2013 .

[12]  F. Amberg.  Tunnelling in high overburden with reference to deep tunnels in Switzerland , 2004 .

[13]  Soohee Han,et al.  Automated and Efficient Method for Extraction of Tunnel Cross Sections Using Terrestrial Laser Scanned Data , 2013, J. Comput. Civ. Eng..

[14]  James H. Foster,et al.  Compact Multipurpose Mobile Laser Scanning System - Initial Tests and Results , 2013, Remote. Sens..

[15]  Tomasz Barszcz,et al.  Mobile Laser Scanning Systems for Measuring the Clearance Gauge of Railways: State of Play, Testing and Outlook , 2016, Sensors.

[16]  Juha Hyyppä,et al.  The Use of a Mobile Laser Scanning System for Mapping Large Forest Plots , 2014, IEEE Geoscience and Remote Sensing Letters.

[17]  Zhan Don.  The Calibration Approach Study on the Multiple Vision Sensors for Railway Tunnel Clearance Full Cross-section Inspection , 2015 .

[18]  Milivoj Vulić,et al.  The Usability of Terrestrial 3D Laser Scanning Technology for Tunnel Clearance Analysis Application , 2014 .

[19]  G. Jackel,et al.  State-of-the-art of Non-destructive Testing Methods for Determining the State of a Tunnel Lining , 1995 .

[20]  Wu Sha.  Fast and Automatic Railway Building Structure Clearance Detection Technique Based on Mobile Binocular Stereo Vision , 2012 .

[21]  Yang Wang,et al.  High-speed railway clearance surveillance system based on convolutional neural networks , 2016, International Conference on Digital Image Processing.

[22]  K Riessberger.  CHECKING GAUGE CLEARANCE BY LASER ECHOES , 1980 .

[23]  Zujun Yu,et al.  FPGA-Based PCI Data Acquisition Synchronization Card of Railway Clearance Detection System , 2011 .

[24]  Wang Li-min.  Summary of the standard GB2585-2007 about hot rails for railway , 2008 .

[25]  R D Franz.  RAILROADS FOR NATIONAL DEFENSE AND THE DOD RAIL CLEARANCE PROFILE , 1981 .

[26]  Wang Mingnian.  Study on influence of blasting vibration on cross tunnels with small clearance , 2007 .

[27]  Jian Xiao,et al.  Multi-Camera and Structured-Light Vision System (MSVS) for Dynamic High-Accuracy 3D Measurements of Railway Tunnels , 2015, Sensors.

[28]  Juha Hyyppä,et al.  Data Processing and Quality Evaluation of a Boat-Based Mobile Laser Scanning System , 2013, Sensors.

[29]  Seh-Chan Oh,et al.  Railway platform monitoring system using stereo vision algorithm for passenger's safety , 2009, INTELEC 2009 - 31st International Telecommunications Energy Conference.

[30]  Mingming Jiang,et al.  A New Filtering and Smoothing Algorithm for Railway Track Surveying Based on Landmark and IMU/Odometer , 2017, Sensors.

[31]  J. J. Aguilar,et al.  Development of a stereo vision system for non-contact railway concrete sleepers measurement based in holographic optical elements , 2005 .

[32]  景司 横瀬,et al.  ばね-摩擦直列結合方式車両の走行安定性解析 : 第2報,ボルスタアンカー取付け部に遊間のある車体だ行動 , 1986 .