Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2009.03a
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- Pages.388-395
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- 2009
Estimation of the lateral behavior of steel-concrete composite piles using subgrade-reaction spring system
지반 반력 스프링 시스템을 이용한 강관 합성 말뚝의 수평 지지 특성 평가
- Kwon, Hyung-Min (Geotech div., KICT) ;
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Lee, Ju-Hyung
(Geotech div., KICT) ;
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Park, Jae-Hyun
(Geotech div., KICT) ;
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Chung, Moon-Kyung
(Geotech div., KICT) ;
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Kwak, Ki-Seok
(Geotech div., KICT)
- 권형민 (한국건설기술연구원 토질및기초연구실) ;
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이주형
(한국건설기술연구원 토질및기초연구실) ;
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박재현
(한국건설기술연구원 토질및기초연구실) ;
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정문경
(한국건설기술연구원 토질및기초연구실) ;
-
곽기석
(한국건설기술연구원 토질및기초연구실)
- Published : 2009.03.27
Abstract
Steel casing used to keep a borehole wall in the construction of drilled shaft increases the vertical and lateral stiffness and strength of pile, but it is usually pulled out or ignored due to the absence of standard or the problem of erosion of steel casing. In order to make use of steel casing as a permanent structure, this study carried out an experimental work for the steel-concrete composite pile. Four types of piles were used to estimate the lateral behavior of piles, which are reinforced concrete pile, steel pile and steel-concrete composite pile with and without reinforcing bar. The subgrade-reaction spring system was developed to simulate the lateral stiffness of soil in laboratory. Also, the composite loading system which can apply the axial and lateral load simultaneously was employed.
Keywords
- steel-concrete composite pile;
- subgrade-reaction spring system;
- steel casing;
- drilled shaft;
- lateral load