Experimental and Numerical Studies on the Performances of Stone Column and Sand Compaction Pile–Reinforced Hong Kong Marine Clay
Publication: International Journal of Geomechanics
Volume 20, Issue 8
Abstract
Stone columns (SCs) and sand compaction piles (SCPs) are widely utilized as effective methods to increase the bearing capacity and reduce the settlement of soft ground. In this study, a physical model test was conducted to compare the performances of the SC- and SCP-improved Hong Kong Marine Clay (HKMC) grounds. Finite-element (FE) modeling was performed to analyze the settlement and stress increment. A practical equation related to the area replacement ratio and the friction angle of columns is proposed for determining the creep improvement ratio of soft ground treated by columns, which agrees well with the creep improvement ratios from the FE simulations.
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Acknowledgments
The work in this paper was supported by grants (1-ZVCR, 1-ZVEH, 4-BCAU, 4-BCAW, 4-BCB1, and 5-ZDAF) from The Hong Kong Polytechnic University, Hong Kong, China. We also acknowledge the support by the Research Institute for Sustainable Urban Development of The Hong Kong Polytechnic University (PolyU) and the Center for Urban Geohazard and Mitigation of Faculty of Construction and Environment of PolyU.
References
Ambily, A. P., and S. R. Gandhi. 2007. “Behavior of stone columns based on experimental and FEM analysis.” J. Geotech. Geoenviron. Eng. 133 (4): 405–415. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:4(405).
Bouassida, M., and J. P. Carter. 2014. “Optimization of design of column-reinforced foundations.” Int. J. Geomech. 14 (6): 04014031. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000384.
BSI (British Standards Institution). 2016. Methods of test for soils for civil engineering purposes. BS 1377. London: BSI.
Castro, J. 2017. “Modeling stone columns.” Materials 10 (7): 782. https://doi.org/10.3390/ma10070782.
Castro, J., and C. Sagaseta. 2009. “Consolidation around stone columns. Influence of column deformation.” Int. J. Numer. Anal. Methods Geomech. 33 (7): 851–877. https://doi.org/10.1002/nag.745.
Feng, W. Q., B. Lalit, Z. Y. Yin, and J. H. Yin. 2017. “Long-term non-linear creep and swelling behavior of Hong Kong marine deposits in oedometer condition.” Comput. Geotech. 84: 1–15. https://doi.org/10.1016/j.compgeo.2016.11.009.
Han, J., and S. L. Ye. 2001. “Simplified method for consolidation rate of stone column reinforced foundations.” J. Geotech. Geoenviron. Eng. 127 (7): 597–603. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:7(597).
Kitazume, M. 2005. The sand compaction pile method. Boca Raton, FL: CRC Press.
Mohanty, P., and M. Samanta. 2015. “Experimental and numerical studies on response of the stone column in layered soil.” Int. J. Geosynth. Ground Eng. 1 (3): 27. https://doi.org/10.1007/s40891-015-0029-z.
Poorooshasb, H. B., and G. G. Meyerhof. 1997. “Analysis of behavior of stone columns and lime columns.” Comput. Geotech. 20 (1): 47–70. https://doi.org/10.1016/S0266-352X(96)00013-4.
Pugh, R. S. 2017. “Settlement of floor slabs on stone columns in very soft clays.” Proc. Inst. Civ. Eng. Geotech. Eng. 170 (1): 16–26. https://doi.org/10.1680/jgeen.15.00150.
Sexton, B. G., V. Sivakumar, and B. A. McCabe. 2017. “Creep improvement factors for vibro-replacement design.” Proc. Inst. Civ. Eng. Ground Improv. 170 (1): 35–56. https://doi.org/10.1680/jgrim.16.00029.
Shi, X. S., and I. Herle. 2017. “Numerical simulation of lumpy soils using a hypoplastic model.” Acta Geotech. 12 (2): 349–363. https://doi.org/10.1007/s11440-016-0447-7.
Shi, X. S., J. Nie, J. Zhao, and Y. Gao. 2020. “A homogenization equation for the small strain stiffness of gap-graded granular materials.” Comput. Geotech. 121: 103440. https://doi.org/10.1016/j.compgeo.2020.103440.
Shi, X. S., and J. Yin. 2017. “Experimental and theoretical investigation on the compression behavior of sand-marine clay mixtures within homogenization framework.” Comput. Geotech. 90: 14–26. https://doi.org/10.1016/j.compgeo.2017.05.015.
Yin, J. H., and J. Graham. 1994. “Equivalent times and one-dimensional elastic viscoplastic modelling of time-dependent stress–strain behaviour of clays.” Can. Geotech. J. 31 (1): 42–52. https://doi.org/10.1139/t94-005.
Yin, J. H., and L. J. Su. 2006. “An innovative laboratory box for testing nail pull-out resistance in soil.” Geotech. Test. J. 29 (6): 451–461. https://doi.org/10.1520/GTJ100216.
Yin, Z.-Y., M. Karstunen, C. S. Chang, M. Koskinen, and M. Lojander. 2011. “Modeling time-dependent behavior of soft sensitive clay.” J. Geotech. Geoenviron. Eng. 137 (11): 1103–1113. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000527.
Zhou, W. H., J. H. Yin, and C. Y. Hong. 2011. “Finite element modelling of pullout testing on a soil nail in a pullout box under different overburden and grouting pressures.” Can. Geotech. J. 48 (4): 557–567. https://doi.org/10.1139/t10-086.
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Published In
International Journal of Geomechanics
Volume 20 • Issue 8 • August 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Oct 19, 2018
Accepted: Feb 7, 2020
Published online: May 21, 2020
Published in print: Aug 1, 2020
Discussion open until: Oct 21, 2020
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