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http://dx.doi.org/10.5762/KAIS.2016.17.11.604

Reinforcement of Collapsed Railway Subgrade and Line Capacity Increase Using Short Reinforcement with Rigid Wall  

Kim, Dae-Sang (Metropolitan Transportation Research Center, KRRI)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.11, 2016 , pp. 604-609 More about this Journal
Abstract
This study evaluated the long-term performance of RSR (Reinforced Subgrade for Railways) technology which increases the railway line capacity without the need for additional land. Its characteristics include the use of a short reinforcement with rigid wall, which make it possible to apply it in confined spaces. The 7m high and 40m long testbed employed to evaluate the long-term performance was designed and constructed near Jupo station on the Chang-hang line. This line, located close to a local bus route, had collapsed at the subgrade following heavy rainfall. The performance of the new type of subgrade was verified with long term measurements over a 2 year period including the surface and ground settlement, horizontal displacement of the wall, tensile strain of the reinforcement, and settlement of the rail top on the side track. Based on the results of the measurements made until now, we concluded that it had sufficient safety and serviceability for use as a railway subgrade. It is expected that RSR technology could be frequently used at sites which lack the necessary construction materials for an embankment and are located close to functional railway lines and boundaries, in order to settle civil complaints.
Keywords
Rainfall; Failure slope; Short Reinforcement; Rigid wall; Line Capacity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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