Study on the Coefficient of Consolidation of Marine Clay by Rowecell Consolidation Test

ROWECELL시험에 의한 해성점토의 압밀계수에 대한 연구

  • 김종국 (한국건설품질시험원 지반기술팀) ;
  • 차영일 ((주)유신코퍼레이션 지반공학부) ;
  • 김혁기 ((주)유신코퍼레이션 지반공학부) ;
  • 김영웅 (인천국제공항공사 건설시험소)
  • Published : 2003.03.01

Abstract

It was achieved that Rowecell test for this undisturbed sample was picked by Block sampler($\phi$:250mm, L:500mm) and hydraulic piston sampler($\phi$:76mm, L:850mm) in the marine clay of YONGYUDO and YEONGJONGDO in this research. Ratio of coefficient of consolidation was analyzed through comparison with C$\_$h/ by CPTu and C$\_$v/ and C$\_$h/ by existent consolidation test. According to analysis, coefficient of consolidation of block sample is fairly greater than coefficient of consolidation of piston sample. And the bigger diameter of undisturbed sample, sample disturbance could know decreasing. Coefficient of consolidation by Rowecell test measured more greatly than coefficient of consolidation by existent consolidation test. Rowecell test could know decreasing consolidation rate because of smear effect by Mandrel injection. Also, C$\_$h/ by CPTu shows deviation by each analysis method, selection of suitable analysis method judged by important leading in the coefficient of consolidation.

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