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The Behavior of Piled Bridge Abutments Subjected to Lateral Soil Movements - A Study on the Centrifuge Model Tests -  

서정주 (연세대학교 공과대학 토목공학과)
서동희 (연세대학교 공과대학 토목공학과)
정상섬 (연세대학교 공과대학 토목공학과)
김유석 (대우건설 기술연구소 토목팀)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.1, 2003 , pp. 5-19 More about this Journal
Abstract
A series of centrifuge model tests were conducted to investigate the behavior of piled bridge abutments subjected to lateral soil movements induced by approach embankments. The effect of clay layer depth and the rate of embankment construction on piled bridge abutments are the main focus of this study. Tests were performed for two loading types: (1) incremental loading applied in six lifts to the final embankment height; (2) instant loading corresponding to the final embankment height applied in one lift quickly. A variety of instrumentations such as LVDTs, strain gauges, earth pressure transducers, and pore pressure transducers are installed in designed positions in order to clarify the soil-pile interaction and the short- and long-term behavior for piled bridge abutments adjacent to surcharge loads. Based on the results of a series of centrifuge model tests, the distribution of lateral flow induced by staged embankment construction has trapezoidal distribution. The maximum lateral soil pressure is about 0.75$\gamma$H at surcharge loading stage, and about 0.35 $\gamma$H at over 80% consolidated stage.
Keywords
Centrifuge model test Lateral flow; Lateral soil pressure; Piled bridge abutment; Soil-pile interaction; Staged construction; Undrained shear strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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