LUO Yan-bin, CHEN Jian-xun, ZHAI Yu-hui. Comparison of measuring accuracies of tunnel displacements with RDM method and 3D measurement method based on total station[J]. Journal of Traffic and Transportation Engineering, 2017, 17(3): 56-64.
Citation: LUO Yan-bin, CHEN Jian-xun, ZHAI Yu-hui. Comparison of measuring accuracies of tunnel displacements with RDM method and 3D measurement method based on total station[J]. Journal of Traffic and Transportation Engineering, 2017, 17(3): 56-64.

Comparison of measuring accuracies of tunnel displacements with RDM method and 3D measurement method based on total station

More Information
  • Author Bio:

    LUO Yan-bin(1980-), male, associate professor, PhD, +86-29-82334887, lyb@chd.edu.cn

  • Received Date: 2017-03-04
  • Publish Date: 2017-06-25
  • Based on geodesy principles and error propagation laws, the remote distance measurement (RDM) method and 3Dcoordinate measurement method of based on free stationing of total station were analyzed, the accuracy analysis models of tunnel displacement based on the two measuring methods were established, and the mean square error was used to evaluate the measuring accuracy. The formulas of mean square error on the two methods were deduced. Athree-lane highway tunnel was taken as an example to compare and verify the measuring accuracies of the two methods. In RDM method, through gaining the horizontal distance, the elevation difference and slant distance of two random measurement points were gained by the triangulate height measurement principle and the cosine theorem, and the tunnel displacement was obtained according to the trigonometric and geometric relationship between two random measurement points. In 3D measurement method, the directions and distances of several known points were observed from the random observation point, the coordinates of random measurement points were calculated by using the coordinate conversion, and the tunnel displacement was obtained according to the coordinates of random measurement points. Analysis result shows that the accuracy evaluating formulas of RDM method and 3D measurement method computing tunnel vault settlement are same, however, the formulas computing tunnel horizontal convergence are different, and the accuracy of RDM method is higher than 3D measurement method. When the distance of total station and measured profile increases, the measuring accuracy difference of two methods increases. When the distance is 100 m, the accuracy difference increases to 0.43 mm. In three-lane highway tunnel, when the distance is 40-60 m, the measuring accuracies of tunnel horizontal convergences for the two methods are highest, the accuracy of RDM method can reach 0.61-0.68 mm, and the accuracy of 3D measurement method can reach 0.78-0.84 mm. The curves of tunnel vault settlement measured by using RDM method and 3D measurement method are smooth, and the fitting degrees of the curves are greater than 0.95. However, in the aspect of measuring tunnel horizontal convergence, the curve's fitting degree for RDM method is greater than 0.9, and the degree is less than 0.9 for 3D measurement method. So, the measuring accuracy of RDM method is higher than 3D measurement method.

     

  • loading
  • [1]
    SCHUBERT W, STEINDORFER A, BUTTON A E. Displacement monitoring in tunnels—an overview[J]. Felsbau, 2002, 20 (2): 7-15.
    [2]
    AYDIN A, OZBEK A, ACAR A. Geomechanical characterization, 3-D optical monitoring and numerical modeling in Kirkgecit-1Tunnel, Turkey[J]. Engineering Geology, 2014, 181: 38-47. doi: 10.1016/j.enggeo.2014.08.010
    [3]
    KOVARI K, AMSTAD C. Decision making in tunneling based on field measurements[R]. Zürich: Swiss Federal Institute of Technology, 1993.
    [4]
    CHEN Jian-xun, YANG Zhong, YUAN Xue-kan. Construction monitoring and measuring in segments of large embedded depth in Qinling Zhongnanshan Super-Long Highway Tunnel[J]. Journal of Architecture and Civil Engineering, 2006, 23 (3): 71-75. (in Chinese). doi: 10.3321/j.issn:1673-2049.2006.03.014
    [5]
    YE Fei, DING Wen-qi, ZHU He-hua, et al. Site monitoring and information feedback of highway tunnel[J]. Journal of Chang'an University: Natural Science Edition, 2007, 27 (5): 79-83. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200705019.htm
    [6]
    CHEN Jian-xun, WANG Meng-shu, XUAN Jun-jie, et al. Deformation rule of loess highway tunnel with two lanes[J]. Journal of Traffic and Transportation Engineering, 2012, 12 (3): 9-18. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JYGC201203005.htm
    [7]
    LAI Jin-xing, FAN Hao-bo, LAI Hong-peng, et al. In-situ monitoring and analysis of tunnel deformation law in weak loess[J]. Rock and Soil Mechanics, 2015, 36 (7): 2003-2012, 2020. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201507030.htm
    [8]
    DUNNICLIFF J. Geotechnical Instrumentation for Monitoring Field Performance[M]. New York: Wiley-Interscience, 1993.
    [9]
    SIMEONI L, ZANEI L. A method for estimating the accuracy of tunnel convergence measurements using tape distometers[J]. International Journal of Rock Mechanics and Mining Sciences, 2009, 46: 796-802. doi: 10.1016/j.ijrmms.2008.11.004
    [10]
    KAVVADAS M J. Monitoring ground deformation in tunnelling: current practice in transportation tunnels[J]. Engineering Geology, 2005, 79: 93-113. doi: 10.1016/j.enggeo.2004.10.011
    [11]
    WANG Hao, GE Xiu-run, SONG Gang, et al. Application of total station in 3-D deformation monitoring during tunnel excavation[J]. 1999, 18 (S): 1217-1219. (in Chinese).
    [12]
    Tan Jun-ling. Application of the remote sensing technology with a total-station to monitor the deformations of surrounding rock in Wushaoling Railway Tunnel[J]. Modern Tunnelling Technology, 2004, 41 (4): 51-54. (in Chinese). doi: 10.3969/j.issn.1009-6582.2004.04.009
    [13]
    TIAN Sheng-li, GE Xiu-run, TU Zhi-jun. Testing study on digital close-range photogrammetry for measuring deformations of tunnel and underground spaces[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25 (7): 1309-1315. (in Chinese). doi: 10.3321/j.issn:1000-6915.2006.07.003
    [14]
    LIU Da-gang, WANG Ming-nian. Study on the non-contact measurement of tunnel surrounding rock deformation based on digital photogrammetry[J]. Modern Tunnelling Technology, 2007, 44 (3): 22-25. (in Chinese). doi: 10.3969/j.issn.1009-6582.2007.03.005
    [15]
    MAHDEVARI S, TORABI S R. Prediction of tunnel convergence using Artificial Neural Networks[J]. Tunnelling and Underground Space Technology, 2012, 28: 218-228. doi: 10.1016/j.tust.2011.11.002
    [16]
    LUO Yan-bin, CHEN Jian-xun. Monitoring and analysis of the deformation of the middle wall during the construction of a shallow soil tunnel by the CRD method[J]. Modern Tunnelling Technology, 2011, 48 (6): 105-109. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XDSD201106021.htm
    [17]
    LUO Yan-bin, CHEN Jian-xun. Calculation method of horizontal surrounding rock pressure for tunnel[J]. Journal of Traffic and Transportation Engineering, 2012, 12 (2): 10-17. (in Chinese). http://transport.chd.edu.cn/article/id/201202002
    [18]
    LUO Yan-bin, CHEN Jian-xun, HUANG Pei, et al. Deformation and mechanical model of temporary support sidewall in tunnel cutting partial section[J]. Tunnelling and Underground Space Technology, 2017, 61: 40-49.
    [19]
    LUO Yan-bin, CHEN Jian-xun, WANG Hong-yu, et al. Deformation rule and mechanical characteristics of temporary support in soil tunnel constructed by sequential excavation method[J]. KSCE Journal of Civil Engineering, 2016, DOI: 10.1007/s12205-016-0978-3.
    [20]
    SONG Ye. Inspection on the precision of 3D deformation observation of free stationing method[J]. Geotechnical Investigation and Surveying, 1999 (1): 61-63. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GCKC901.017.htm
    [21]
    YANG Song-lin, LIU Wei-ning, WANG Meng-shu, et al. Study on the auto-total station system for monitoring analyzing and forecasting tunnel country rock deformation[J]. Journal of the China Railway Society, 2004, 26 (3): 93-97. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TDXB200403018.htm
    [22]
    CHENG Xiao-jun, MIAO Dun. Discussion on accuracy of liberal station method with total station machine[J]. Railway Investigation and Surveying, 2008 (6): 1-4. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-TLHC200806002.htm
    [23]
    YUAN Heng, LIU Cheng-long, LU Jie, et al. The principle and accuracy analysis of non-contact monitoring for tunnel based on free station of total station[J]. Geotechnical Investigation and Surveying, 2012 (8): 63-67. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GCKC201208015.htm
    [24]
    LUO Yan-bin, CHEN Jian-xun, XI Wei-zheng, et al. Analysis of tunnel displacement accuracy with total station[J]. Measurement, 2016, 83: 29-37.

Catalog

    Article Metrics

    Article views (783) PDF downloads(536) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return