섬유보강 실트질 모래의 동적 변형특성
Dynamic Deformation Characteristics of Fiber Mixed Silty Sand
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Abstract
A series of resonant column test was performed to investigate the dynamic deformation characteristics of silty sand soils mixed with polypropylene fibrillated type fiber. Results show that optimum mixing ratios were for 19 mm of cut fiber for shear modulus and for 60 mm cut fiber for damping ratio. As shear strain was increased, normalized values of shear modulus/ of fiber reinforced soil were increased up to ～ ranges. However, normalized damping ratio/ was diminished with an increase in strain beyond ～ for the damping capacity of soils mixed with fiber. Normalized shear modulus obtained from the test was plotted in the chart suggested by Seed and Idriss. The shear modulus of silty sand was located between sand and gravel curves.
참고문헌 (8)
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