Seismic Analyses of Statically Stable 3 m High Cantilevered Retaining Walls with Saturated Backfills
Publication: Geo-Extreme 2021
ABSTRACT
Cohesionless materials are desired as backfill for retaining structures. These structures have 1–4 ft cohesionless backfill within the vertical stem of the wall for drainage purposes. The remaining backfill is typically from available borrow materials that may have a percent of fines content with some cohesion. There are reported walls that the backfill has up to 95 kPa cohesion. These mixed backfills may consist of primarily cohesionless backfills but with some silts and/or clays. These types of walls can be exposed to high-saturation levels due to rain or being at the port facilities. In this study, the effect of mixed backfills on the seismic behavior of cantilevered retaining walls with a saturated backfill is analyzed. A validated numerical procedure was used in this study to analyze the seismic response of the walls with mixed backfills that are statically stable against overturning, sliding, and global stability. A 3-m-high cantilevered retaining wall with different backfill cohesions was modeled numerically under scaled seismic record of Imperial Valley earthquake. Pore-water pressure generation and pore-water pressure ratios were assessed and compared for models with cohesionless and cohesive backfills.
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REFERENCES
Byrne, P. M. (1991). “A Cyclic Shear-Volume Coupling and Pore-Pressure Model for Sand.” in Proceedings: Second International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics (St. Louis, Missouri, March 1991), Paper No. 1.24, 47–55.
Bowles, L. E. (1996). Foundation analysis and design. McGraw-Hill.
Budhu, M. (2015). Soil Mechanics Fundamentals. John Wiley and Sons, United Kingdom.
Dewoolkar, M. M., Ko, H. Y., and Pak, R. Y. S. (2000). “Experimental developments for studying static and seismic behavior of retaining walls with liquefiable backfills.” Soil Dynamics and Earthquake Engineering, 19(8), 583–593, doi: https://doi.org/10.1016/S0267-7261(00)00069-5.
Dewoolkar, M. M., Ko, H. Y., and Pak, R. Y. (2001). “Seismic behavior of cantilever retaining walls with liquefiable backfills.” Journal of Geotechnical and Geoenvironmental engineering, 127(5), 424–435, doi: https://doi.org/10.1061/(ASCE)1090-0241(2001)127:5(424).
Dewoolkar, M. M., Chan, A. H. C., Ko, H. Y., and Pak, R. Y. (2009). “Finite element simulations of seismic effects on retaining walls with liquefiable backfills.” International journal for numerical and analytical methods in geomechanics, 33(6), 791–816, doi: https://doi.org/10.1002/nag.748.
Chan, A. H. C. (1993). User Manual for DIANA–SWANDYNE II, Department of Civil Engineering, Glasgow University.
Iraji, A., and Osouli, A. (2020). “Liquefaction Numerical Analysis of a Cantilevered Retaining Wall Using a Simple Finn-Byrne Model.” In Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics (pp. 41–50). Reston, VA: American Society of Civil Engineers, doi: https://doi.org/10.1061/9780784482810.005.
Pastor, M., Zienkiewicz, O., and Chan, A. (1990). “Generalized plasticity and the modelling of soil behaviour.” Int. J. Numer. Anal. Methods Geomech., 14(3), 151–190, doi:https://doi.org/10.1002/nag.961
Peck, R. B., Hanson, W. E., and Thornburn, T. H. (1974). Foundation engineering (Vol. 10). New York: Wiley.
Zeng, X. (2005). “Effect of Liquefaction on Stability of Retaining Walls.” In Earthquake Engineering and Soil Dynamics (pp. 1–15), doi: https://doi.org/10.1061/40779(158)19.
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Geo-Extreme 2021
Pages: 109 - 118
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© 2021 American Society of Civil Engineers.
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Published online: Nov 4, 2021
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