Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2006.03a
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- Pages.1358-1366
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- 2006
Dynamic Behaviors of Shelly Sand in Cyclic Simple Shear Test
반복단순전단 시험에 의한 패각질 모래의 동적 거동
- Yoon, Yeo-Won (Dept. of Civil Engineering, Inha University) ;
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Yoon, Kil-Lim
(Korea Ocean Research & Development Institute) ;
- Choi, Jae-Kwon (Dept. of Civil Engineering, Inha University) ;
- Kim, Jae-Kwon (Samsung Corporation) ;
- Kim, Seung-Hyun (Samsung Corporation)
- Published : 2006.03.24
Abstract
In order to study the effects of shell contents on the liquefaction resistance of the shelly sand, NGI cyclic simple shear tests were performed for the shelly sands with shell contents of 0%, 5%, 10%, 20% and 30% under the effective vertical stress of 50kPa, 100kPa and 150kPa for 40% and 55% of relative density, respectively. Cyclic simple shear test results showed that for the low effective vertical stress, liquefaction resistance increased rapidly with the increase of shell contents in both 40% and 55% relative density. On the other hand, for the high effective vertical stress, the liquefaction resistance increased slightly in 40% relative density whereas the resistance was almost same in 55% relative density. Liquefaction resistance decreased with increasing effective vertical stress for both 40% and 55% relative density. In the same effective vertical stress and shell contents, liquefaction resistance increased with the increase of relative density of sands.
Keywords
- Cyclic simpler shear test;
- Effective vertical stress;
- Shell contents;
- Relative density;
- Liquefaction resistance