The Study on Rigidity Index of the Soft Clay in Korea

국내 연약지반의 강성지수(Ir)에 관한 연구

  • 서수봉 (한국토지공사 기술관리처) ;
  • 윤일형 (한국토지공사 기술관리처) ;
  • 이재식 (한국토지공사 기술관리처) ;
  • 구남실 (한국토지공사 기술관리처)
  • Published : 2000.11.01

Abstract

Several soil parameters can be calculated for results of Piezocone test; sensitivity, soil classification, OCR, undrained shear strength, coefficient of consolidation etc., and used to analysis geotechnical problems. Particularly, the coefficient of consolidation which is related to degree of consolidation varies according to rigidity index(I/sub r/). In this study, rigidity index(I/sub r/) was analyzed by Roy's formula. Trixial tests and unconfined compression tests data in the ten sites was analyzed. In conclusion, rigidity index(I/sub r/) was suggested such as rigidity index(I/sub r/) = 15∼60, average rigidity index value(I/sub r/) of approximately 33 within a country.

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