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http://dx.doi.org/10.14481/jkges.2013.14.12.061

Behaviour Characteristics of Tunnel in the Cavity Ground by using Scale Model Tests  

Chung, Jeeseung (Dongyang University Department of Railroad Civil Engineering)
Moon, Innki (Korea Development Co., Ltd. Civil Engineering Division)
Yoo, Chanho (Asin E&C Co., Ltd.)
Publication Information
Journal of the Korean GEO-environmental Society / v.14, no.12, 2013 , pp. 61-69 More about this Journal
Abstract
As construction for road and train tunnel is increasing, various geotechnical conditions can be faced during the construction stage. Especially, if the tunnel is located in limestone area, the cavity is mostly to locate in tunnel planning location. One or some cavities which can be harmful for tunnel safety are predicted. Hence, this study was fulfilled to confirm the influence between tunnel and cavity using laboratory scale down model test and numerical analysis. The scale down model test was carried out to confirm the failure load of the model ground about the interval length of cavity and tunnel and to analyze behaviour characteristics of the model ground on the cavity shape. From the model test result, the failure load decrease in accordance with decreasing of interval length between cavity and tunnel within 0.5D. The numerical analyses were carried out for verification about scale down model test. From the numerical analysis result, tunnel safety decreases in the case of the interval between cavity and tunnel within 0.5D.
Keywords
Behaviour characteristics; Cavity; Failure load; Scale down test; Tunnel;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Baek, S. C., Jang, B. S., Lee, T. G., Lee, S. M. and Hwang, J. S. (2009), A study on the stability estimation procedure for reinforced pillar of twin tunnel, Journal of Korean Geo-environmental Society, Vol. 10, No. 7, pp. 81-91 (in Korean).
2 Han, Y. J., Shim, S. B., Choi, Y. K., Kim, G. H., Chang, O. S. and Kim H. T. (2009), The sensitivity analysis on failure parameter of adjacent twin tunnel using model tests, Korean Geotechnical Society Spring Conference, pp. 1214-1219 (in Korean).
3 Hwang, J. S., Kim, S. W., Bang, Y. K. and Kim H. T. (2005), Stability estimation method and analysis for pillar considering the reinforcement method, Korean Society of Civil Engineering Annual Conference, pp. 5571-5574 (in Korean).
4 Jang, B. S., Hwang, J. S., Ryu, J. W., Lee, Y. G. and Kim, H. T. (2006), Stability estimation method for pillar considering the reinforcement method during twin-tunnel excavation, Korean Geotechnical Society Spring Conference, pp. 980-987 (in Korean).   과학기술학회마을
5 Kim, H. T., Park, J. Y. and Yoo, C. H. (2006), A study on optimal reinforcing type of precast retaining wall reinforced by micropiles, Journal of Korean Geotechnical Society, Vol. 22, No. 11, pp. 89-99 (in Korean).   과학기술학회마을
6 Lee, Y. J. (2006), Comparison of shallow model tunnel test using image processing and numerical analysis, Journal of Korean Geotechnical Society, Vol. 22, No. 7, pp. 5-12 (in Korean).   과학기술학회마을