실트질 모래의 액상화 후 반복하중에 의한 동적거동

Post-liquefaction Behavior under Cyclic Loading of a Silty Sand

  • 강병희 (인하대학교 공과대학 건설공학부) ;
  • 박근보 (인하대학교 대학교 토목공학과) ;
  • 서명하 (인하대학교 대학교 토목공학과)
  • 발행 : 2000.10.01

초록

보통으로 다져진 실트질 모래(Dr=50%)에 대한 액상화 전후 상태에서의 반복하중에 의한 동적거동을 연구하기 위하여 몇가지의 압밀응력비로서 압밀시킨공시체에 대해서 일련의 일련의 반복삼축시험을 수행하였다. 연구결과로서 압밀응력비가 액상화거동에 미치는 영향을 나타내었으며 또한 액상화 전후의 동적거동을 비교하였다. 그리고 액상화 후의 거동은 선행액상화시의 응력반전여부에 의해서 절대적으로 좌우된다는 사실을 보여주고 있다. 결론적으로 액상화를 경험한 공시체의 액상화저항은 액상화를 경험하지 않은 공시체에 비해서 이방압밀의 경우에는 높고 등방압밀의 경우에는 낮다.

키워드

참고문헌

  1. Liquefaction Potential of Sand Deposit under Low Levels of Excitation Carter, D.P.;Seed, H.B.
  2. Journal of the Soil Mechanics and Foundations Division v.97 no.SM6 Effect of Strain History on Liquefaction of Sand Finn, W.D.L.;Bransby, P.L.;Pickering, D.J.
  3. Soils and Foundations v.31 no.3 Undrained Cyclic Shear Stength and Residual Strain of Saturated Sand by Cyclic Triaxial Tests Hyodo, M.;Murata, H.;Yasufuku, N.;Fujii, T.
  4. Soils and Foundations v.34 no.1 Undrained Cyclic and Monotonic Triaxial Behavior of Saturated Loose Sand Hyodo, M.;Tanimize, H.;Yasufuku, N.;Murata, H.
  5. Geotechnique v.3 no.3 Liquefaction and Flow Failure During Earthquake Ishihara, K.
  6. Soils and Foundations v.18 no.4 Effects of Stress History on Cyclic Behavior of Sand Ishihara, K.;Okada, S.
  7. Journal of the Soil Mechanics and Foundations Division v.93 no.SM5 Dynamic Strength of Anisotropically Consolidated Sand Lee, K.L.;Seed, H.B.
  8. Proceeding International Conference on Recent Advance in Geotechical Engineering and Soil Dynamics Potential for Liquefactin Due to Construction Blasting Long, H.;Ries, E. R.;Michalapoulos, A. P.
  9. Journal of the Soil Mechanics and Foundations Division v.92 no.SM6 Liquefaction of Saturated Sands During Cyclic Loading Seed, H. B.;Lee, K. L.
  10. Soils and Foundations v.24 no.2 Effects of Preshearing on Liquefaction Characteristics of Saturated Sand Subjected to Cyclic Loading Suzuki, T.;Toki, S.
  11. Flow Slide Failures Associated with Low Level Vibrations Szerdy, F. S.
  12. Soils and Foundations v.23 no.1 Effects of Static Shear on Resistance to Liquefaction Vaid, Y. P.;Chern, J. C.
  13. Advances in the art of testing soils under cyclic conditions Cyclic and Monotonic Undrained Response of Saturated Sands Vaid, Y. P.;Chern, J. C.
  14. Soils and Foundations v.29 no.4 Preshering and Undrained Response of Sand Vaid, Y. P.;Chung, E. K. F.;Kuerbis, R. H.
  15. Journal of the Geotechnical Engineering Division v.121 no.2 Liquefaction and Post-liquefaction Behavior of Sand Vaid, Y. P.;Thomas, J.
  16. proceeding 14th ICSMFE v.1 Post-liquefaction Behavior of Saturated Sand under Simple Shear Loading Vaid, Y. P.;Sivathayalan, S.
  17. First Int. Conf. Earthquake Geotechnical Engineering Shear-strain Relationships of Liquefied Sands Yasuda, S.;Yoshida, N.;Masuda, T.;Nagase, H.;Mine, K;Kiku, H.;Kenji Ishihara(ed.)