Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2004.03b
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- Pages.82-89
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- 2004
A Study on the Shear Strength Characteristics of Composited Ground applying RAP Method by Large Direct Shear Test
대형직접전단시험에 의한 RAP 복합지반의 전단강도 특성 연구
- Chun, Byung-Sik (Dept. of Civil Engineering, Hanyang Univ.) ;
- Seo, Deok-Dong (Dept. of Civil Engineering, Hanyang Univ.) ;
- Kim, Jong-San (Dept. of Civil Engineering, Hanyang Univ.)
- Published : 2004.03.25
Abstract
To secure stability and availability of Rammed Aggregate Pier method as the foundation of a structure, the shear strength characteristics according to the area replacement ratio of RAP and the relative density of in-situ ground was studied through soil laboratory tests and large direct shear tests in a model ground. As a result, the internal friction angle tends to increase in proportion to in-situ relative density(Very Loose, Loose, Medium) in composite ground formed by the same area replacement ratio of RAP and also increase in proportion to increasing the area replacement ratio(30, 40, 50%) of RAP in the same ground condition. Furthermore, the comparative analysis between the experimental value and theoretical value of the shear strength is carried out.
Keywords
- Rammed Aggregate Pier;
- Composite ground;
- Relative density;
- Area replacement ratio;
- Shear strength characteristics