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Nonlinear Dynamic Properties of Fiber Reinforced Soils  

박철수 (경희대학교 토목공학과)
황선근 (한국철도기술연구원 궤도 토목연구본부)
목영진 (경희대학교 토목공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.19, no.2, 2003 , pp. 189-197 More about this Journal
Abstract
In this paper, deformation characteristics of fiber-mixed-soils were studied at small strain range(0.0001%~1%) using resonant column test and triaxial test, and reinforcement effect was evaluated by the measure of maximum shear moduli. The effects of the major parameters such as fiber content, aspect ratio and fiber type on reinforcement were comparatively assessed. The specimens were remolded from Jumunjin Sand randomly mixed with discrete polypropylene staple fibers. Maximum shear moduli of fiber-mixed-soils increased by up to 30% and modulus reduction was also restrained in nonlinear range. Shear moduli increased as the aspect ratio increases. The reinforcement was more effective with fibrillated fiber than with monofilament fiber. The most effective reinforcement was achieved with the specimen of 0.3 % fiber content.
Keywords
Aspect ratio; Damping ratio; Fiber content; Fiber reinforced soil; Fiber type; Reinforcing effect; Resonant column test; Shear modulus; Small strain triaxial test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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