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http://dx.doi.org/10.7782/JKSR.2012.15.5.467

Behavior Characteristics of Railway Roadbed Retained by Geosynthetic Reinforced Segmental Wall Under Train Load  

Lee, Seong Hyeok (High speed Railway Research Division, Korea Railroad Research Institute)
Choi, Chan Yong (High speed Railway Research Division, Korea Railroad Research Institute)
Lee, Jin Wook (High speed Railway Research Division, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society for Railway / v.15, no.5, 2012 , pp. 467-475 More about this Journal
Abstract
Static and dynamic train load tests were conducted to evaluate the train load transfer mechanism in the roadbed which was retained by two types (fully and partially) of segmental retaining walls reinforced by geogrid. The test roadbed was 2.6m high, 5m wide, and 6m long. A combination of earth pressure gages, displacement transducers, and strain gages were placed in specific locations to measure the responses. Test results showed that the wall displacement pattern as well as the earth pressure for the fully reinforced retaining wall was different from those for the partially reinforced retaining wall. In the dynamic train load test, the strain in the upper part of the wall tended to decrease, and both the residual deformation and the rate of the deformation were significantly lower than those in the current design standard.
Keywords
Geogrid; Segmental retaining wall; Ballasted track; Large scale model test; Static and dynamic train load; Earth pressure; Displacement; strain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 KORAIL (2010) Facilities Work Status 2010, KORAIL, pp. 448-449.
2 V. Elias, R. Barry, B.R. Christopher (1997) Mechanically stabilized earth walls and reinforced soil slopes, design & construction guidelines, FHWA Report #FHWA-SA-96-071, Washington, DC., USA.
3 C.S. Yoo, S.B. Kim, Y.H. Kim, D.H. Han (2007) Time-dependent Deformation Characteristics of Geosynthetic Reinforced Modular Block Walls under Sustained/cyclic Loading, Journal of the Korean geotechnical society, 23(6), pp.5-21.
4 C.S. Yoo (2007a) On the enhanced application of retaining walls in the railway industry, Korea Research Railway Institute.
5 K. Hatami, R.J. Bathurst (2006) Numerical Model for Reinforced Soil Segmental Walls under Surcharge Loading, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, pp. 673-684.
6 R.J. Bathurst, K. Hatami, M.C. Alfaro (2002) Geosynthetic reinforced soil walls and slopes; Sesmic asphects, In : Shukla, S.K.(Ed), Geosynthetics and Their Applications, Tohamas Telford, pp. 327-392.
7 F. Tatsuoka, M. Tateyama, J. Koseki (1997) Performance of reinforced soil structures during the 1995 Hyogo-ken Nambu earthquake, In Ochiai, H., Yasufuku, N., Omine, K.(Eds), Earth Reinforcement, Balkema, Rotterdam, pp. 979-1008.
8 M. Kenichi, I.L. Hoe, et al. (2003) Vibration test of segmental retaining wall, Geosynthetic Symposium Journal, 18, pp. 251-258.
9 G.F. Sowers, A.D. Robb, C.H. Mullis, A.J. Glenn (1957) The residual lateral pressures produced by compacting soils, Proceedings of the fourth International Conference on Soil Mechanics and Foundation Engineering 2, pp. 243-247.
10 T.W. Cousens, M. Isabel, M. Pinto (1996) The effect of compaction on model fabric reinforced brick faced earth retaining walls, Earth Reinforcement, Ochiai, Yasufuku & Omine, Balkema, 1996.
11 J.W. Ju, J.B. Park, H.H. Na (2011) Bulging of Reinforced Retaining Walls, Journal of the Korean geosynthetics society, 10(2), pp. 45-53.
12 J.M. Kim, S.D. Cho, J.J. Lee, Y.S. Paik (2004) An Experimental Study on Characteristics of Earth Pressure Distribution for Segmental Reinforced Earth Wall, Journal of the Korean geotechnical society, 20(1), pp. 83-90.