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논문 기본 정보

자료유형
학술저널
저자정보
Tafreshi, S.N. Moghaddas (Department of Civil Engineering, K.N. Toosi University of Technology) Norouzi, A.H. (Department of Civil, Construction and Environmental Engineering, North Carolina State University)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제9권 제2호
발행연도
2015.1
수록면
219 - 241 (23page)

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In this paper, a series of repeated load tests were carried out on a 150 mm diameter plate simulative of vehicle passes, to demonstrate the benefits of soil-rubber shred mixture in decreasing the soil surface settlement of road embankment. The results show that the efficiency of rubber reinforcement is significantly a function of the rubber content, thickness of rubber-soil mixture and soil cap thickness over the mixture. Minimum surface settlement is provided by 2.5% of rubber in rubber-soil mixture, the thickness of mixture layer and soil cap of 0.5 times the loading surface diameter, giving values of 0.32-0.68 times those obtained in the unreinforced system for low and high values of amplitude of repeated load. In this installation, in contrast with unreinforced bed that shows unstable response, the rate of enhancement in settlement decreases significantly as the number of loading cycles increase and system behaves resiliently without undergoing plastic deformation. The findings encourage the use of rubber shreds obtained from non-reusable tires as a viable material in road works.

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