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http://dx.doi.org/10.7843/kgs.2012.28.5.27

The Evaluation of Seepage Characteristics in Reinforced Embankment Constructed on Low Permeable Clay Layer Through Centrifuge Model Tests  

Jin, Seok-Woo (Dept. of Civil and Environment Engrg., KAIST)
Choo, Yun-Wook (Dept. of Civil and Environment Engrg., KAIST)
Kim, Young-Muk (Dept. of Civil and Environment Engrg., Hanbat National Univ.)
Kim, Dong-Soo (Dept. of Civil and Environment Engrg., KAIST)
Im, Eun-Sang (Infrastructure Research Center, K-water Institute, K-Water)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.5, 2012 , pp. 27-39 More about this Journal
Abstract
In this paper, a series of centrifuge tests were performed to evaluate the seepage characteristic of reinforced embankment. The centrifuge models simulated an actual embankment reinforced by enlargement of levee cross-section. The centrifuge models have the same conditions except the locations of enlargement with low permeable material : water-side and land-side. In addition, the prototype embankment is constructed on low permeable clay layer. In the case of water-side reinforcement, the reinforced zone makes water head down and the saturated zone of embankment propagates slowly. In the case of land-side reinforcement embankment, the saturated zone enlarged relatively faster but the amount of exit water at land-side toe was very small because of the land-side reinforcement zone. The low permeable clay foundation layer was being continuously saturated by the inflow from the embankment as well as the uplift flow from the permeable layer induced by the excess pore water pressure.
Keywords
Centrifuge; Enlargement; Land-side reinforcement; Levee; Low permeable foundation; Water-side reinforcement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Kim, Y. M., and Shin, Y. S. (1998), "An Experimental Study on the Seepage Behavior for Enlargement Embankment", Journal of Hanbat Univ., Vol.15 A, pp.249-264.
2 Shin, B. W., Bae, W. S., Lee, J. K., and Kang, J. B. (2001), "The Seepage Behaviour and Stability of Extension Embankment by Unsteady State Seepage", Journal of Korean Geo-Enviornmental Society, Vol.2, No.1, pp.57-65.
3 Taylor, R. N. (1995), "Geotechnical Centrifuge Technology", Blackie Academic and Professional, pp.19-25.
4 Yuck, C. S., Shin, Y. S., and Kim, Y. M. (1999), "Analysis of Seepage Behavior for Enlargement Embankment", Proc. of Korean Society of Civil Engineering, pp.369-372.
5 KICT (2007), "Construction Techniques of Levee using bed Sediment and Dredged Material of River", 2005 Construction R&D Project Final Report, Ministry of Construction & Transportation.
6 Kim, D. S., Cho, G. C., and Kim, N. R. (2006), "Development of KOCED Geotechnical Centrifuge Facility at KAIST", Physical Modeling in Geotechnics, Hongkong, China, pp.147-150.
7 Kim, S. K., Shin, S. M., and Seo, H. S. (1992), "Analysis of Piping Effect in Levee due to Seepage Velocity (Case Study)", Proc. of Korean Society of Civil Engineering, pp.497-500.
8 Kim, S. R., Hwang, J. I., and Kim, M. M. (2006), "Comparison of 1-g and Centrifuge Model Tests for Similitude Laws", Journal of Korean Geotechnical Society, Vol.22, No.5, pp.59-67.
9 Hwang, D. H., and Lim, H. D. (2007), "Behavior Analysis of Cofferdam using Natural Topography by Centrifuge Model Tests", Journal of Korean Society of Civil Engineering, Vol.27, 6C, pp.413-423.
10 Alonso, E. E., and Cardoso, R. (2010), "Behavior of Materials for Earth and Rockfill Dams: Perspective form Unsaturated Soil Mechanics", Archit. Civ. Eng. China, Vol.4, No.1, pp.1-39.   DOI
11 Im, E. S., Seo, M. W., Ha, I. S., and Kim, W. G. (2005), "Simulation of Earth-fill Dam Behavior Subjected to Water Level Variation using Geotechnical Centrifuge", Journal of Korean Society of Civil Engineering, Vol.25, 2C, pp.95-102.
12 Jin, S. W., Kim, N. R., and Kim, D. S. (2011), "Reproduction of Piping Failure due to the Permeable Layer using Centrifuge Test", Journal of Korean Society of Civil Engineering, Vol.31, 1C, pp.1-10.
13 KICT (2004), "Development of Advanced Technologies for Levees", 2001 Construction and Transportation Technology Innovation Project Final Report, Ministry of Construction & Transportation.