Single Surface 구성모델을 이용한 재성형 점토의 응력-변형률 거동 예측

Prediction for Stress-Strain Behavior of Remolded Clay using Single Surface Constitutive Model

  • 발행 : 2000.05.01

초록

The study is closely relevant to Lade's single work hardening model. This model has been shown to have good applicability to cohesive soils. However the validation of this model on the clayey soils has not been satisfactorily reported. To scrutinize the applicability of this model on clayey foundation the laboratory tests for Kwangyang clayey soils were performed using the improved cubical triaxial test apparatus designed originally by Lade. A computer program was developed by which soil parameters for the single work-hardening model can be rationally determined by deleting some dispersed test data generated usually at the initial stage of laboratory tests. And using the program numerical analysis of the cubical clayey specimens using intermediate principal stress was carried out and a good agreement between observed values and numerical results was found.

키워드

참고문헌

  1. 점토에 대한 축대칭 및 중간주응력 제어시험에 의한 응력·변형의 기초연구 정종범
  2. 한국지반공학회지 v.8 no.2 탄·소성구성모델의 토질매개변수 예민성 정진섭;김찬기;이문수
  3. Journal of the soil mechanics and foundations division v.94 no.sm6 Undrained stress distributions by numerical method Christian, J. T.
  4. Constitutive laws for engineering materials with emphasis on geologic materials Desai, C. S.;Siriwardane, H. J.
  5. computers and geotechnics v.5 no.4 Single hardening constitutive model for frictional materials, pastic potential function Kim, M. K.;Lade, P. V.
  6. Journal of geotech. eng. div. v.104 Prediction of undrained behavior of sand Lade, P. V.
  7. geotechnical testing journal v.1 no.2 Cubical triaxial apparatus for soil testing Lade, P. V.
  8. Proc. of 3rd int. conference on numerical method in geomechanics Stress-strain theory for normally consolidated clay Lade, P. V.
  9. Journal of geotechnical eng. v.116 no.3 Single-hardening model with application to NC clay Lade, P. V.;Kim, M. K.
  10. J. soil mechanics foundation div. v.99 Cubical trixial tests on cohesionless soil Lade, P. V.;Duncan, J. M.
  11. The pore pressure coefficients A and B geotechnique v.4 no.4 Skempton, A. W.
  12. Computers and geotechnics v.6 no.1 Single hardening constitutive model for frictional materials, yield criterion and plastic work contours Lade, P.V.;Kim, M.K.