Calculation of Immediate Settlement Caused by Shear Deformation for Embankment on Soft Ground

연약지반 성토시 전단변형에 의하여 유발된 즉시침하량의 산정

  • 정하익 (한국건설기술연구원 토목연구부) ;
  • 진현식 (한국건설기술연구원 토목연구부) ;
  • 진규남 (한국토지공사 토지연구원) ;
  • 김달용 (한국토지공사 시험연구실)
  • Published : 1999.02.01

Abstract

The ultimate settlement of soft clay consists of three parts: $\circled1$ immediate settlement, S$\sub$d/; $\circled2$ Primary consolidation settlement, S$\sub$c/; $\circled3$ Secondary consolidation settlement, S$\sub$s/. In general, S$\sub$c/ can be accurately calculated by one-dimensional consolidation and S$\sub$s/ or S$\sub$d/ may be ignored. This paper focuses on a calculation method to estimate the immediate settlement induced by lateral deformation of subgrade, to which shear stress is applied by embankment on soft ground. Immediate settlement and consolidation settlement are discussed by comparing the field measurement of the Yangsan test embankment on treated soft foundation by vertical paper drains.

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