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Deformation Analysis of Geosynthetic Reinforced Retaining Wall by Using Temperature Dependent Confined Tension Test Results  

김홍택 (홍익대학교 토목공학과)
방윤경 (대원과학대학 토목과)
조용권 (㈜서영기술단 지반기술팀)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.2, 2003 , pp. 97-106 More about this Journal
Abstract
In this study, the effect of temperature and soil confining stress on geosyntheic stress-strain properties was quantified by performing the temperature dependent confined tension tests for four types of geosynthetic including woven geotextile, composite, geomembrane and geogrid specimen. Temperature instrumentation on the GRS-retaining wall constructed in Jaechon-shi area was also performed to examine the a seasonal temperature variation of geosynthetic reinforcements in the backfill. Based on the test results, a comparison was made between unconfined and confined moduli far each temperature to quantify the soil confinement and temperature effect on stress-strain properties. And it was also proposed that the simple expressions for the secant moduli of geosynthetics as a function of temperature and confining stress on geosynthetics. As a result of the FDM analysis of GRS-retaining wall, the method of considering the effect of temperature and confining stress on geosynthetic reinforcements when performing the FDM analysis of GRS-retaining wall was proposed.
Keywords
Confined tension test; Geosynthetics; Reinforced soil retaining wall; Secant modulus; Stress-strain relationship; Temperature dependent;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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