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http://dx.doi.org/10.14481/jkges.2015.16.2.45

Development and Application of Cone Penetrometer with Impact Penetration Rod for Evaluation of Track Substructure  

Hong, Wontaek (School of Civil, Environmental and Architectural Engineering, Korea University)
Byun, Yonghoon (School of Civil, Environmental and Architectural Engineering, Korea University)
Kim, Sangyeob (School of Civil, Environmental and Architectural Engineering, Korea University)
Choi, Chanyong (Korea Railroad Research Institute)
Lee, Jongsub (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Journal of the Korean GEO-environmental Society / v.16, no.2, 2015 , pp. 45-52 More about this Journal
Abstract
To minimize the cost of maintenance, repair and over-design of track substructure, an accurate evaluation of strength and stiffness of the track substructure is necessary. In this study, a cone penetrometer with impact penetration rod (CPI) is developed for the evaluation of track substructure. For applicability test, the chamber and field tests were performed. As the experimental results of the CPI, dynamic cone penetration endex (DCPI), cone tip resistance ($q_c$), friction resistance ($f_s$) and friction ratio (Fr) were obtained. In the chamber test, the experimental results show reasonable values for the simulated track substructure. In the field test, the CPI clearly detects the interface between the ballast and the subgrade. Also, discontinuous layers are detected in the subgrade. It is expected that the developed CPI may be an effective tool for the evaluation of track substructure by evaluating the ballast layer by dynamic penetration and the subgrade by static penetration of the inner rod.
Keywords
Cone penetration test; Cone tip resistance; DCPI; Friction resistance; Track substructure;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 한국지반공학회 (2005), 지반조사결과의 해석 및 이용, 구미서관, 서울, 734 p.
2 Bemben, S. M. and Myers, H. J. (1974), The influence of rate of penetration on static cone resistance in connecticut river valley varved clay, Proceedings of the European Symposium on Penetration Testing, Stockholm, pp. 33-34.
3 Byun, Y. H., Kim, J. H. and Lee, J. S. (2013), Cone penetrometer with a helical-type outer screw rod for evaluation of the subgrade condition, Journal of Transportation Engineering, 139, pp. 115-122.   DOI
4 De Lima, D. C. and Tumay, M. T. (1991), Scale effects in cone penetration tests, Proceedings of the Geotechnical Engineering Congress, Boulder, Colorado, 1, pp. 38-51.
5 Kim, D. S., Hwang, S. K., Shin, M. H. and Park, T. S. (2005), Evaluation on the condition of track substructure using GPR/ PBS/LFWD, Journal of the Korean Geotechnical Society, 21(5), pp. 163-170 (in Korean).   과학기술학회마을
6 Kim, D. S., Lee, S. H., Kang, S. G. and Son, K. H. (2004), Research for assessing railway trackbed condition, 2004 Spring Conference of Korean Society for Railway, Korea, pp. 54-60 (in Korean).
7 Kim, D. S., Park, S. Y. and Kim, S. I. (2008), Evaluation of correlation between subgrade reaction modulus and strain modulus using plate loading test, Journal of the Korean Geotechnical Society, 24(6), pp. 57-67 (in Korean).   과학기술학회마을
8 Kim, M. C., Park, Y. G., Lim, H. J., Park, S. H. and Ryu, J. Y. (2013), A study on the condition assessment of ballasted tracks of various substructure types of in-service railway line, 2013 Autumn Conference of Korean Society for Railway, Korea, pp. 178-186 (in Korean).
9 Lee, J. S., Shin, D. H., Yoon, H. K. and Lee, W. (2008), Development and application of ultra small micro-cone penetrometer, Journal of the Korean Geotechnical Society, 24(2), pp. 77-86 (in Korean).   과학기술학회마을
10 Lunne, T., Robertson, P. K. and Powell, J. J. M. (1997), Cone penetration testing in geotechnical practice, Blackie Academic & Professional, London, 352p.
11 Mohammadi, S. D., Nikoudel, M. R., Rahimi, H. and Khamehchiyan, M. (2008), Application of the dynamic cone penetrometer (DCP) for de-termination of the engineering parameters of sandy soils, Eng. Geol., 101(3-4), pp. 195-203.   DOI   ScienceOn
12 Park, C. S., Mok, Y. J., Hwang, S. K. and Park, I. B. (2009a), A methodology for quality control of railroad trackbed fills using compressional wave velocities: 1. preliminary investigation, Journal of the Korean Geotechnical Society, 25(9), pp. 45-55 (in Korean).
13 Park, C. S., Mok, Y. J., Hwang, S. K. and Park, I. B. (2009b), A methodology for quality control of railroad trackbed fills using compressional wave velocities: 2. verification of applicability, Journal of the Korean Geotechnical Society, 25(9), pp. 57-66 (in Korean).
14 Park, J. O., Min, H. K. and Jeon, I. S. (2009c), Evaluation of subgrade state in the gyeongbu high speed railway through GPR tests and drilling boreholes, 2009 Spring Conference of Korean Society for Railway, Korea, pp. 984-996 (in Korean).   과학기술학회마을
15 Park, Y. G., Choi, J. Y. and Kang, D. M. (2005), A study on the dynamic behaviors of track due to deterioration characteristics of ballast, 2005 Spring Conference of Korean Society for Railway, Korea, pp. 94-99 (in Korean).
16 Yoon, H. K., Jung, S. H., Cho, S. H. and Lee, J. S. (2011), Study of temperature compensation method in mini-cones, Journal of Korean Society of Civil Engineering, 31(1), pp. 29-38 (in Korean).   과학기술학회마을