Fig. 3. Comparison of obtained and existing solution for cylindrical piles with different boundary conditions: (a) free-free, (b) free-pinned, and (c) free-fixed
Fig. 4. Variation of b with ar
Fig. 5. Variation of b with ak
Fig. 6. Variation of b with af
Fig. 7. Variations of b with (a) γ and (b) α
Fig. 8. Variation of b with β
Fig. 9. Buckling modes of tapered friction piles: (a) free-free, (b) free-pinned, and (c) free-fixed
Fig. 10. ζb profiles along ξ : (a) free-free, (b) free-pinned, and (c) free-fixed
Fig. 1. Notations for soil-pile system: variations of (a) pile radius, (b) coefficient of subgrade reaction, and (c) unit side-friction resistance
Fig. 2. (a) Idealization of a bucked taper pile embedded in elastic foundation supported by friction forces, and (b) defection and forces of pile segment
참고문헌
- KGS (2015), Korean Foundation Engineering Code, Korean Geotechnical Society (In Korean).
- AASHTO (2012), LRFD Bridge Design Specifications, American Association of State Highway and Transportation Officials.
- Albusoda, B.S. and Abbase, H.O. (2017), "Performance Assessment of Single and Group of Helical Piles Embedded in Expansive Soil", International Journal of Geo-engineering, Vol.8, No.25, https://doi.org/10.1186/s40703-017-0063-x.
- Bjerrum, L. (1957), "Norwegian Experience with Steel Piles to Rock", Geotechnique, Vol.7, No.2, pp.73-96. https://doi.org/10.1680/geot.1957.7.2.73
- Carnahan, B., Luther, H.A., and Wilkes, J.O. (1969), Applied Numerical Methods, John Wiley & Sons, NY, USA.
- Chen, Y.H., Chen, L., Wang, X., and Chen, G. (2015), "Critical Buckling Load Calculation of Piles based on Cusp Catastrophe Theory", Marine Geoscience & Geotechnology, Vol.33, Issue (3) pp.222-228.
- Coduto D.P. (2001), Foundation Design: Principles and Practices, Prentice-Hall, New Jersey, USA.
- Davisson, M.T. (1963), "Estimating Buckling Loads for Piles", Proceeding of 2nd Pan American Conference on Soil Mechanics and Foundation Engineering, Sao Paulo, Brazil, Vol.1, pp.351-369.
- Davisson, M.T. and Robinson, K.E. (1965), "Bending and Buckling of Partially Embedded Piles", Proceeding of 6th International Conference on Soil Mechanics and Foundation Engineering, Montreal, Canada, Vol.2, pp.243-246.
- Deng, T., Liu, Q., and Huang, M. (2017), "Buckling of Fully Embedded Single Piles by Using the Modified Vlasov Foundation Model", International Journal of Structural Stability and Dynamics, Vol.16, No.10, 1750007 (15 pages). https://doi.org/10.1142/S0219455417500079
- Gabr, M., Wang, J., and Kiger, S.A. (1994), "Effect of Boundary Conditions on Buckling of Friction Piles", Journal of Engineering Mechanics, ASCE, Vol.120, No.6, pp.1392-1400. https://doi.org/10.1061/(ASCE)0733-9399(1994)120:6(1392)
- Gere, J.M. and Timoshenko, S.P. (1997), Mechanics of Materials, PWS Publishing Company, MA, USA.
- Heelis, M.E., Pavlovic, M.N., and West, R.P. (2004), "The Analytical Prediction of the Buckling Loads of Fully and Partially Embedded piles", Geotechnique, Vol.54, No.6, pp.363-373. https://doi.org/10.1680/geot.2004.54.6.363
- Hetenyi, M. (1946), Beams on elastic foundations, University of Michigan Press, MI, USA.
- Jeong, H., No, I., and Lee, Y. (2015), "Critical Buckling Characteristics of Micropiles under Axial Loads", Journal of the Korean Geotechnical Society, Vol.31, No.9, pp.39-51. https://doi.org/10.7843/kgs.2015.31.9.39
- Lee, J.K., Jeong, S., and Lee, J. (2014), "Natural Frequencies for Flexural and Torsional Vibrations of Beams on Pasternak Foundation", Soils and Foundations, Vol.54, No.6, pp.1202-1211. https://doi.org/10.1016/j.sandf.2014.11.013
- Liang, F., Zhang, H., and Huang, M. (2015), "Extreme Scour Effects of the Buckling of Bridge Piles Considering the Stress History of Soft Clay", Natural Hazards, Vol.77, No.2, pp.1143-1159. https://doi.org/10.1007/s11069-015-1647-4
- Prakash, S. (1987), "Buckling Loads of Fully Embedded Vertical Piles", Computers and Geotechnics, Vol.4, No.2, pp.61-83. https://doi.org/10.1016/0266-352X(87)90011-5
- Reddy, A.S. and Valsangkar, A.J. (1970), "Buckling of Fully and Partially Embedded Piles", Journal of Soil Mechanics and Foundation Division, ASCE, Vol.96, No.SM6, pp.1951-1965. https://doi.org/10.1061/JSFEAQ.0001480
- Rowe, R.K. and Booker J.R. (1981), "The behavior of Footings Resting on a Non-homogeneous Soil Mass with a Crust. Part I. Strip Footings", Canadian Geotechnical Journal, Vol.18, No.2, pp.250-264. https://doi.org/10.1139/t81-028
- Shanker, K., Basudhar, P.K., and Patra, N.R. (2007), "Buckling of Piles under Liquefied Soil Conditions", Geotechnical and Geological Engineering, Vol.25, No.3, pp.303-313. https://doi.org/10.1007/s10706-006-9111-6
- Vogt, N., Vogt, S., and Kellner, C. (2009), "Buckling of Slender Piles in Soft Soils", Bautechnik, Vol.86, No.1, pp.98-112. https://doi.org/10.1002/bate.200910046
- West, R.P., Heelis, M.E., Pavlovic, M.N., and Wylie, G.B. (1997), "The Stability of End-bearing Piles in a Non-homogeneous Elastic Foundation", International Journal for Numerical and Analytical Methods in Geomechanics, Vol.21, No.12, pp.845-861. https://doi.org/10.1002/(SICI)1096-9853(199712)21:12<845::AID-NAG905>3.0.CO;2-7