Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on Measuring the Coefficient of Earth Pressure at Rest II

정지토압계수 측정에 관한 연구 II

  • SONG MU-HYO (Division of Civil and Urban Engineering, Dong Eui University)
  • 송무효 (동의대학교 토목 도시공학부)
  • Published : 2004.12.01
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Abstract

In order to investigate the characteristics of the lateral earth pressure at rest, under hysteretic $K_o-loading/unloading$ conditions, seven types of multi-cyclic models have been studied, using dry sand. For this study, the new type of $K_o-oedometer$ apparatus was developed, and the horizontal pressure was accurately measured. The multi-cyclic models consist of primarily 3 cases: (i) $K_o-test$ under the same loading / unloading condition, (ii) multi-cyclic loading / unloading $K_o-test$ exceeding the maximum pre-vertical stress, and (iii) multi-cyclic loading / unloading $K_o-test$ within the maximum pre-vertical stress. Results fromthe multi-cyclic model indicated that a single-cyclic model could be extended if the exponents for the unloading condition $(\alpha\;and\;\alpha^*)$ and the reloading coefficients $(m_r,\;and\;m_r^{\ast})$ were primarily dependent upon the type of model, number of cycles, and the relative density.

Keywords

References

  1. 송무효 (1991). 다주기 $K_0$-재하/제하에 의한 건조 모래의 거동, 동아대학교, 공학박사 학위논문
  2. 송무효 (1999). '정지토압계수의 측정장치 개발에 관한 연구' 한국해양공학회지, 제13권, 제2호, pp 159-167
  3. 송무효 (2001). '정지토압계수 측정에 관한 연구 I ' , 한국해양공학회지, 제15권, 제4호, pp 92-100
  4. 정성교, 정인준, 김명모 (1991). '뒷채움 다짐에의한 횡방향토압', 대한토목학회 논문집, 제11권, 제2호, pp 51-64
  5. Al-Hussaini, M.M. and Townsend, F.C. (1975). 'Stress Defonnation of Sand under $K_0$ Conditions', Proceedings, 5th Panamencan Conference on Soil Mechanics and Foundation Engineering, Vol 1, Buenos Aires, Argentina, pp 125-136
  6. Bishop, A.W. and Henkel, D.J. (1975). The Measurement of Soil Properties in the Triaxial Test, Arnold, London
  7. Campanella, R.G. and Vaid, Y.P. (1972). 'A Simple Ko Thaxial Cell', Canadian Geotechnical Journal, Vol 9, No3, pp 249-260 https://doi.org/10.1139/t72-029
  8. Mayne, P.W and Kulhawy, F.H. (1982) ' $K_0$-OCR Relationships in Soil', Journal of the Geotechnical Engineering Division, ASCE, 108, GT6, pp 851-872
  9. Ofter, Z. (1981). 'Instruments for Laboratory and In-Situ Measurement of the Lateral Swelling Pressure of Expansive days', Proceeding, 4th Intemationl Conference on Expansive Soils, Denver, USA, pp 45-53
  10. Ofter, Z. (1981). 'Laboratory Instrument for Measuring the Lateral Soil Pressure and Swelling Pressure', ASTM Geotechnical Testing Joumal, Vol 4, No 4, pp. 177-182 https://doi.org/10.1520/GTJ10787J
  11. Oter, Z. (1982). 'Laboratory Ko Testine of Choesionless Soil,' The Civa Engineering in South Africal, Vol 24, No 10, pp 533-545
  12. Ofer, Z. (1984). 'Laboratory Determination of $K_0$ and Comparison with Prototype Soil Obervations", 4th Australia New Zealand Conference on Geotechanics,Perth, pp 14-18
  13. Ou, Chang-Yu (1988). Finite Element Analysis of Compaction Induced Stresses and Deformation, Ph. D. Thesis, Stanford University
  14. Seed, R.B. (1983). Soil-Structure Interaction Effects of Compaction-Induced Stress and Deformations, Ph. D.Thesis, Univ. of Califonia at Berkeley, p 425
  15. Seed, RD. and Duncan, J.M (1983). 'Soil-Structure Interaction Effects of Compaction-Induced Stresses and Deformations', Geotechnical Engineering Research Report No. UCB/GT/83-06, Univ. of California, Berkeley, USA
  16. Tatsuoka, F. and Ishihara, K. (1974). 'Drained Deformation of Sand Under Cyclic Stresses Reversing Direction', Soil and Foundations, Vol 14, No 3, pp 51-65 https://doi.org/10.3208/sandf1972.14.3_51
  17. Tatsuoka, F. (1974). Deformation Characteristics of Sand, Ph.D. Dissertation, Univ. of Tokyo
  18. Tatsuoka, F. (1974). Deformation Characteristics of Sand, Ph.D. Dissertation, Univ. of Tokyo
  19. Worth, C.P. (1975). 'In-Situ Measurement of Initial Stresses and Defonnation Characteristics', Proceedings, In-Situ Measurement of Soil Properties, ASCE, Vol 2, North Carolina State University, Raleigh, N.C, pp 181-230
  20. Wright, S.G. (1969). A Study of Slope Stability and Undrained Shear Strength of Clay Shales, Ph. D. Thesis, University of California at Berkeley