A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Response of Rail Embankments
This paper presents an evaluation of the seismic response of a full-scale rail embankment tested on the University of California San Diego (UCSD) Powell Laboratory shake table. The goal of performing the experiment was to understand the impacts of earthquake motions on the seismic settlement of the embankment and the associated crosslevel variation of the rails. The tested specimen consisted of a half-section embankment consisting of layers of compacted ballast, subballast, and clay subgrade having a total height of 1.50 m and a length in the direction of shaking of 7.52 m to accommodate typical rail embankment slope angles. The specimen had a width of 3.5 m that permitted 5 ties to be connected to the rails. After characterizing the dynamic deformation response of the container designed, a rail embankment specimen was constructed and tested under an actual earthquake motion. The applied motion induced a maximum horizontal rail acceleration of 1.38 g but only a small residual cross-level variation of only 0.66 mm was measured.
Seismic Response of Rail Embankments
This paper presents an evaluation of the seismic response of a full-scale rail embankment tested on the University of California San Diego (UCSD) Powell Laboratory shake table. The goal of performing the experiment was to understand the impacts of earthquake motions on the seismic settlement of the embankment and the associated crosslevel variation of the rails. The tested specimen consisted of a half-section embankment consisting of layers of compacted ballast, subballast, and clay subgrade having a total height of 1.50 m and a length in the direction of shaking of 7.52 m to accommodate typical rail embankment slope angles. The specimen had a width of 3.5 m that permitted 5 ties to be connected to the rails. After characterizing the dynamic deformation response of the container designed, a rail embankment specimen was constructed and tested under an actual earthquake motion. The applied motion induced a maximum horizontal rail acceleration of 1.38 g but only a small residual cross-level variation of only 0.66 mm was measured.
Seismic Response of Rail Embankments
Yarahuaman, Axel (author) / McCartney, John S. (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 300-310
2022-03-17
Conference paper
Electronic Resource
English
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