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A study on Response Characteristics for the Reinforced Abutment for Railroads by Numerical Analyses
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 Title & Authors
A study on Response Characteristics for the Reinforced Abutment for Railroads by Numerical Analyses
Kim, Dae-Sang; Jeong, Rag-Gyo;
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This paper introduced the RAR(Reinforced Abutment for Railroads) to reduce settlement of transitional zone and horizontal displacement of abutment by constructing backfill before abutment. We expect that it has more economical and better performance which was validated by numerical analyses. First, transitional zone settlements and horizontal displacements of existing abutment were evaluated for various heights and ground conditions by using finite element analysis program. Then, numerical analyses of it under the same conditions were performed and its results were compared with existing abutment's ones. From the numerical analysis, we found that the responses(settlement and horizontal displacement) of transitional zone of the RAR is about 20% and 34% of one of existing abutment due to the effect of backfill stabilizing. We expected that the RAR having small foundations could be economic way to construct abutment with the control of responses such as, settlement, horizontal displacement, and earth pressure.
Abutment;Numerical analysis;RAR;Response characteristics;Transition zone;
 Cited by
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W. P. Hong, K. W. Lee, S. D. Cho, J. H. Lee, "Evaluation on lateral movement of piled bridgeabutment on soft ground under lateral flow", Journal of the Korean Society of Civil Engineers, Vol.27, NO.5C, pp.305-312, 2007.

J. Y. Kim, Y. H. Park, K. H. Cho, "Earth pressure reduction method in Railway bridge abutment using Geosynthetics Tube", Autumn Conference & Annual Meeting of the Korean Society for Railway(2013.11), pp.952-959, 2013.

Ministry of Land, Infrastructure and Transport(in Korea), "Standard Specification of Highway bridge", 2013

Korea Railway Network Authority, "Railway design standard for roadbed", 2011.

D. S. Kim, "Stability Evaluation of Reinforced Subgrade with Short Geogrid for Railroad During Construction" Journal of the Korean Geosynthetics Society, Vol.13, NO.4, pp.11-20, 2014. DOI:

D. S. Kim, S. Y. Park, K. H. Kim, "Effects of Vertical Spacing and Length of Reinforcement on the Behaviors of Reinforced Subgrade with Rigid Wall", Journal of the Korean Geosynthetics Society, Vol.11, NO.4, pp.27-35, 2012. DOI: