Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2009.03a
- /
- Pages.396-404
- /
- 2009
Load-carrying capacity of geosynthetic encased stone columns
지오그리드 보강 스톤컬럼 공법의 하중 지지 특성
-
Yoo, Chung-Sik
(Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.)
;
- Kim, Sun-Bin (Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.) ;
-
Lee, Dae-Young
(Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.)
;
- Park, Sun-Joon (Dept. of Civil & Envir. Engrg, Sungkyunkwan Univ.)
-
유충식
(성균관대학교 건설환경시스템공학과)
;
- 김선빈 (성균관대학교 건설환경시스템공학과) ;
-
이대영
(성균관대학교 건설환경시스템공학과)
;
- 박선준 (성균관대학교 건설환경시스템공학과)
- Published : 2009.03.27
Abstract
This paper presents the results of numerical investigation on support mechanism of geogrid-encased stone columns for use in soft ground. A number of cases were analyzed using a axial- and 3D stress-pore pressure coupled model that can effectively model construction sequence and drainage as well as reinforcing effects of geogrid-encased stone columns. The results indicated that the geogrid encasement tends to significantly improve the load carrying of a stone column. Also revealed was that such a confinement effect depends on encasement length and stiffness of geogrid. It is also shown that there exist critical encasement length and stiffness of geogrid for a given condition.