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Assessments of Creep Properties of Strip Type fiber Reinforcement  

전한용 (전남대학교 응용화학공학부)
유중조 (보강기술(주) 기술연구소)
김홍택 (홍익대학교 공과대학 토목공학과)
김경모 (보강기술(주) 기술연구소)
김영윤 (보강기술(주) 기술연구소)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.2, 2003 , pp. 279-289 More about this Journal
Abstract
Geosynthetic reinforced earth wall was introduced about 20 years ago and many structures have been constructed. Especially, segmental concrete panel facing and friction tie system are the most popular system in Korea, and this friction tie was composed of high tenacity PET filament and LDPE(Low Density Polyethylene) sheath. Due to the lack of direct-test results, design coefficients of friction tie (creep reduction factor) had been determined by quoting the previous and the foreign reference data. This is an unreasonable fact for the use of friction ties. In this study, the creep tests were performed to evaluate the creep behavior of friction tie, and the reduction factor of creep was calculated for the correct design of geosynthetic reinforced earth retaining walls. From the test results, finally it was found that the allowable creep strength of friction tie is 60% of Tult during service life, and creep reduction factor is 1.67 for each grade of friction ties.
Keywords
Creep; Friction tie; Geosynthetic Reduction factor; Reinforced earth; SIM;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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