Browse > Article
http://dx.doi.org/10.7474/TUS.2017.27.1.058

A Study on the Roughness Measurement for Joints in Rock Mass Using LIDAR  

Lee, Sudeuk (Department of Energy Systems Engineering, Seoul National University)
Jeon, Seokwon (Department of Energy Systems Engineering, Seoul National University)
Publication Information
Tunnel and Underground Space / v.27, no.1, 2017 , pp. 58-68 More about this Journal
Abstract
According to the development of optical technology, the capacity of LIDAR equipments has been greatly improved to get rock mass characteristics precisely and accurately enough and it has been lightened and popularized so that it can be easily used in the field. In this study, we examined the applicability of roughness measurement for joints in a rock slope using LIDAR technique. A triangular irregular network was constructed using LIDAR and a patch, which is a plane structure of discontinuity on rock mass measured from LIDAR scanning, was extracted to estimate the roughness of the rock slope. Four different kinds of roughness parameters were analyzed to find out their correlation with JRC for various point intervals. Among them, $R_s$ parameter was used to measure the roughness of a patch. Regression analysis between four roughness parameters and JRC with respect to point interval was performed. All the roughness parameters decreased with the increase of point interval. In addition, the parameter value showed greater decrease for rougher surfaces. A method of roughness measurement using $R_s$ parameter on rock slope discontinuities was suggested which showed slight overestimation of the real roughness value.
Keywords
LIDAR; Rock joint; TIN (triangular irregular network); Roughness; JRC;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Abellan, A., Oppikofer, T., Jaboyedoff, M., Rosser, N. J., Lim, M., & Lato, M. J., 2014, Terrestrial laser scanning of rock slope instabilities, Earth Surface Processes and Landforms, Vol. 39, No. 1, 80-97.   DOI
2 Bae, K. Y. and Lee, C. I., 2002, Development of a 3D roughness measurement system of rock joint using laser type displavement meter, Tunnel and Underground Space, Vol. 12, No. 4, 268-276.
3 Barton, N. and Choubey, V., 1977, The shear strength of rock joints in theory and practice, Rock Mechanics, Vol. 10, 1-54.   DOI
4 Barton, N. R., 1976, The shear strength of rock and rock joints, International Journal of Rock Mechanics Mining Sciences & Geomechanics Abstracts, Vol. 13, No. 9, 255-279.   DOI
5 Belem, T., F. Homand-Etienne and M. Souley, 2000, Quantitative parameters for rock joint surface roughness, Rock Mechanics and Rock Engineering, Vol. 33, No. 4, 217-242.   DOI
6 Cai, M., Kaiser, P. K., Uno, H., Tasaka, Y., & Minami, M., 2004, Estimation of rock mass deformation modulus and strength of jointed hard rock masses using the GSI system, International Journal of Rock Mechanics and Mining Sciences, Vol. 41, 3-19.   DOI
7 Cai, M., Kaiser, P. K., Tasaka, Y., Minami, M., 2007, Determination of residual strength parameters of jointed rock masses using GSI system, International Journal of Rock Mechanics and Mining Sciences, Vol. 44, 247-265.   DOI
8 El Soudani, S. M., 1978, Profilometric analysis of fractures, Metallography, Vol. 11, 247-336.   DOI
9 Feng, Q., Fardin, N., Jing, L., & Stephansson, O., 2003, A New Method for In-situ Non-contact Roughness Measurement of Large Rock Fracture Surfaces, Rock Mechanics and Rock Engineering, Vol. 36, No. 1, 3-25.   DOI
10 Hoek, E., Kaiser, P. K., Bawden, W. F., 1995, Support of underground excavations in hard rock, Rotterdam, Balkema, 215p.
11 Kemeny, J., Turner, K., & Norton, B., 2006, LIDAR for rock mass characterization: hardware, software, accuracy and best-practices, Laser and Photogrammetric Methods for Rock Face Characterization, 49-62.
12 Park, B. Y. and Kwon, S., 2000, Current Status of the Characterization of the Rock Joint Surface, Tunnel and Underground Space, Vol. 10, No. 4, 566-579.
13 Kim, C. and Kemeny, J., 2009, Measurement of Joint Roughness in Large-Scale Rock Fracture Using LIDAR, Tunnel and Underground Space, Vol. 19, No. 1, 52-63.
14 Kwon, J. C., 2005, Analysis on shear behavior of rock joint under different shear test methods, Master's Thesis, Seoul National University.
15 Lee, S. and Jeon, S., 2016, A Study on the Extraction of Slope Surface Orientation using LIDAR with respect to Triangulation Method and Sampling on the Point Cloud, Tunnel and Underground Space, Vol. 26, No. 1, 46-58.   DOI
16 Myers, N., 1962, Characterization of surface roughness, Wear, Vol. 5, No. 3, 182-189.   DOI
17 Oh, S., 2011, Extraction of Rock Discontinuity Orientation by Laser Scanning Technique, Masters thesis, Seoul National University, 73p.
18 Park, J. W., Lee, Y. K., Song, J. J. and Choi, B. H., 2012, A New Coefficient for Three Dimensional Quantification of Rock Joint Roughness, Vol. 22, No. 2, 106-119.   DOI
19 Son, B. K., 2006, Shear behavior of rock joint under constant normal stiffness condition, Ph.D. Thesis, Seoul National University.
20 Tatone, B. and Grasselli, G., 2009, A method to evaluate the three-dimensional roughness of fracture surfaces in brittle geomaterials, Review of Scientific Instruments, Vol. 80, No. 12, 1-10.
21 Tatone, B. and Grasselli, G., 2013, An Investigation of Discontinuity Roughness Scale Dependency Using High-Resolution Surface Measurements, Rock Mechanics and Rock Engineering, Vol. 46, 657-681   DOI
22 Tse, R. and Cruden, D. M., 1979, Estimating joint roughness coefficients, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, Vol. 16, 303-307.   DOI