Stress-Strain-Strain Rate of Overconsolidated Clay Dependent on Stress and Time History

응력이력과 시간이력에 따른 과압밀점토의 응력-변형-변형률 속도

  • 한상재 (한양대학교 토목.환경공학과) ;
  • 김수삼 (한양대학교 토목.환경공학과) ;
  • 김병일 (한양대학교 토목.환경공학과)
  • Published : 2003.02.01

Abstract

This study deals with the stress-strain-strain rate behaviour of overconsolidated clay. Consolidated-drained stress path tests were performed on the stress-time dependent condition. Stress history consists of rotation angle of stress path, overconsolidation ratio, and magnitude of length of recent stress path. Time history includes loading rate of recent and current stress path. Test results show that all influence factors have an increasing strain rate with time, and the strain rate varies with the change of the rotation angle of stress path. With the increase of overconsolidation ratio and loading rate of current stress path, the strain rate also increases. For the stress history, correlation between stress-strain and strain rate is indicated but the time history is not.

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