한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2004년도 춘계학술발표회
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- Pages.552-560
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- 2004
단일 쇄석다짐말뚝의 지지력 특성과 주요 설계 파라미터에 관한 고찰
The study on the Characteristics of Ultimate Bearing Capacity and Major Design Parameters for Single Stone Column
- Chun, Byung-Sik (Dept. of Civil Engineering, Hanyang University) ;
- Kim, Won-Cheul (Dept. of Civil Engineering, Hanyang University) ;
- Jo, Yang-Woon (Dept. of Civil Engineering, Hanyang University)
- 발행 : 2004.03.25
초록
Stone column is a soil improvement method and can be applicable for loose sand or weak cohesive soil. Since the lack of sand in Korea, stone column seems one of the most adaptable approach for poor ground as a soil improvement method. However, this method was not studied for practical application. In this paper, the most effective design parameters for the being capacity of stone column were studied. The parametric study of major design factors for single stone column was carried out under the bulging and general shear failure condition, respectively. Especially, a test result of single stone column by static load was compared with the bearing capacity values of suggested formulas. The analysis result showed that the ultimate bearing capacity by the formula was much less than the measured value by the static load test. Especially, the result of the parametric study under general shear failure condition showed that the bearing capacity has apparent difference between each suggested formulas with the variation of the major design parameters. Therefore, the result of this study can be a suggestion which is applicable for the field test and the future research.
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