Short - and Long-term Load Carrying Capacity of Geogrid Reinforced Stone Column - A numerical investigation

지오그리드 보강 Stone Column의 장.단기 하중 지지 특성 - 유한요소해석을 통한 고찰

  • 이대영 (한국건설기술연구원 지반연구부) ;
  • 김선빈 (성균관대학교 토목환경공학과) ;
  • 송아란 (성균관대학교 토목환경공학과) ;
  • 유충식 (성균관대학교 토목환경공학과)
  • Published : 2006.03.24

Abstract

The stone column method is widely used in Europe as an alternative to conventional pile foundations. Several benefits of using the stone column method include sound performance, low cost, expediency of construction, and liquiefaction resistance, among others. Recently, geosynthetic-encased stone column approach has been developed to improve its' load carrying capacity through increasing confinement effect. Although such a concept has successfully applied in practice, fundamentals of the method have not been fully explored. This Paper Presents the results of an investigation on the loading carriying capacity of geogrid-encased stone column using a series of 2D finite element analyses. The results of the analyses indicated improved short- and long-term carrying capacity of the geogrid-encased stone column method over the conventional strone column method with no encasing.

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