The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
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A study on the Consolidation Characteristics of remolding Marine Clay and Weathered Granite Soil by SCT and CRSC

표준.일정변형률속도 압밀시험을 이용한 해성점토.화강암질 풍화토의 압밀특성에 관한 연구

  • Published : 2002.12.01
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Abstract

We have remolded marine clay sample collected along the vertical and horizontal directions and investigated the characteristics of the consolidation constants by SCT and CRSC methods. We have studied also on consolidation chracteristics and application for weathered granite soil using SCT and CRSC methods for undisturbed and disturbed samples. As the result, values of pre-consolidation stress, compression index, excessive pore pressure, pore water pressure ratio of the marine-clay were different due to different test methods(SCT and CRSC) and sampling directions(vortical and horizontal directions). Disturbed and undisturbed samples of the weathered granite soil have showed similar change aspect like marine clay during over-consolidatied and normally consolidatied stages.

재성형된 해성점토 시료를 연직·수평방향으로 채취하여 표준압밀시험(SCT)과 일정변형률속도 압밀시험(CRSC)을 실시하여 연약 해성점토지반에 대한 압밀정수들의 구성관계를 확인하였다. 또한, 불교란 교란 화강암질 풍화토의 표준·일정변형률속도 압밀시험을 통하여 화강암질 풍화토에 대한 압밀 정수들의 특성과 적용성을 고찰하였다. 그 결과 해성점토 시료의 연직·수평방향과 표준·일정변형률속도압밀시험 방법에 따라 선행압밀응력, 압축지수, 과잉간극수압, 간극수압비 등이 달리 산정됨을 알 수 있었다. 또한, 불교란·교란 화강암질 풍화토 시료에서도 해성점토와 유사하게 과압밑·정규압밀 구간에서 압밀정수들의 변화를 확인하였다.

Keywords

References

  1. 석사학위논문 , 강원대학교 일정변위압밀이론에 의한 연약점토의 압밀특성 산정에 관한 연구 박순규
  2. 석사학위논문, 조선대학교 재성형 해성점토의 이방성에 따른 압밀특성 정우철
  3. 97 가을 학술발표회 논문집 일정변위압밀시험에 의한 한강오니토의 압밀특성에 관한 실험적 연구 채영수;방의석
  4. ASTM Standard Test Method for One-Dimensional Consolidation Pro perties of Soils Using Controlled Strain Loading ASTM
  5. Consolidation of soils ASTM, STP 892 Philadelphia Im proved Techniques for the Constant Rate of Strain Consolidation Test Armour, D.W.;Drnevich, V.P.
  6. Geotechnical Testing Journal v.1 no.1 Constant Rate of Strain and Controlled Gradient Consolidation Testing Gorman, C.T.;Hopkins, T.C.;Deen, R.D.;Drnevich, V.P. https://doi.org/10.1520/GTJ10363J
  7. Proc. 6th ICSMFE v.2 Consolidation fo clay layers based on non-linear stress strain Janbu, N.
  8. STP 892, ASCE Automatic Continuous Consolidation Testing in Sweden Larsson, R.;Sallfors, G.
  9. Geotechnique v.31 Consolidation with Constant Rate of Deformation Lee, K. https://doi.org/10.1680/geot.1981.31.2.215
  10. Geotechnique v.35 no.7 Stress-Strain-Strain Rate Relation for the Compressibility of Sensitive Natural Clays Leroueil, S.;Kabbaj, M.;Tavenas, F;Bouchard, R.
  11. Ph.D thesis, Chamers University of Technology Preconsolidation pressure of soft, high-plastic clays Sallfors, G.
  12. STP 382, ASTM Oedometer testing at the Norwegian Geotechnical Institute Sandbaekken, G.;Berre, T.;Lacasse, S.
  13. J. soil Mech. Fdns Div., ASCE, sm2 Consolidation under constant rates of strain Smith, R.E.;Wahls, H.E.
  14. Ein Einfugrung in die Analytishe Tonmechanik, Deuticke, Leipzig Theorie der Sitzung von Tonschichten Terzaghi, K.;Frohlich, O.K.
  15. Journal of the Soil Mechanics and Foundations Division, ASCE v.97 no.SM10 Consolidation at Constant Rate of Strain Wissa, A.E.Z.;Christian, J.T.;Davis, E.H.;Heiberg, S.
  16. Geotechnique v.36 no.2 Constant rate of deformation testing and analysis Znidaricic, D.;Schffman ,R.L.;Pane, V.;Croce, P.;Olsen, H.W. https://doi.org/10.1680/geot.1986.36.2.227