Skip to main content
SpringerLink
Log in

Numerical Modelling of the Consolidation Behavior of Peat Soil Improved by Sand Columns

  • Published:
Soil Mechanics and Foundation Engineering Aims and scope

This paper presents a ground improvement method using sand as material in columnar inclusion. The main focus of the study is to model the consolidation behavior of peat soil reinforced by sand columns. The effects of sand column length and column diameter were determined using numerical analysis. It was revealed that the final settlement strongly depends on the area replacement ratio. The numerical results showed that the installation of larger-diameter, fully penetrated columns reduced soil settlement. The settlement reduction results of our numerical analysis are in good agreement with the experimental results. In order to improve the confining stresses of sand, an alternative approach utilizing geogrid encasement was examined numerically. The increasing stiffness of geogrid effectively increased the load carrying capacity of the sand column. Based on the results, geogrid performs better in smaller-diameter columns.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. H. Hazarika, D. Mujah, N. Watanabe, F. Ahmad, N. Yasafuku, and K. Omine, "Fundamental study on earth reinforcing effect using small diameter model steel pile," Proc. 13th Int. Summer Symp., Kyoto 207-210 (2011).

  2. D. Mujah, F. Ahmad, H. Hazarika, and A. Safari, "Evaluation of the mechanical properties of recycled glass fibers-derived three dimensional geomaterial for ground improvement," J. Clean Prod., 52, 495-503 (2013).

    Article  Google Scholar 

  3. D. Mujah, M. E. Rahman, and N. H. M. Zain, "Performance evaluation of the soft soil reinforced ground palm oil fuel ash layer composite," J. Clean Prod., 95, 89-100 (2015).

    Article  Google Scholar 

  4. B. B. K. Huat, "Deformation and shear strength characteristics of some tropical peat and organic soils," Pertanika J. Sci. Technol., 14, 61-74 (2006).

    Google Scholar 

  5. J. K. Mitchell, "Soil improvement: State of the art report," Proc. 10th Int. Conf. Soil Mech. and Found. Eng., Stockholm (1981).

  6. P. S. Pinto, "Ground improvement by addition of elements," PhD Thesis, University of Coimbra, Portugal (2003).

  7. D. Mujah, F. Ahmad, H. Hazarika, and N. Watanabe, "Numerical analysis of the multirow arrangement of small diameter steel piles for landslide prevention," Int. J. Curr. Eng. Technol., 3(1), 1-20 (2013).

    Google Scholar 

  8. W. Wehr, M. Topolnicki, and W. Sonderman, "Design risks of ground improvement methods including rigid inclusions," Int. Symp. Ground Improv., Brussels (2012).

  9. E. Carvajal, G. Vukotic, C. Sagaseta, and W. Wehr, "Column supported embankments for transportation infrastructures: Influence of column stiffness, consolidation effects and cyclic loading," Proc. 18th Int. Conf. on Soil Mech. and Geotech. Eng., Paris (2013).

  10. B.A. Mir, and A. Juneja, "Effect of smear on strength behaviour of SCP-reinforced soft ground," Proc. 18th Int. Conf. on Soil Mech. and Geotech. Eng., Paris (2013).

  11. D. Raj and C. V. Dikshith, "Vibro replacement columns for shipyard infrastructure at Pipavav, Gujarat, India," Proc. Int. Symp. Ground Improv. Tech. and Case Histories, Singapore (2009).

  12. N. Hataf and N. Nabipour, "Experimental investigation on bearing capacity of geosynthetic encapsulated stone columns," Proc. 18th Int. Conf. on Soil Mech. and Geotech. Eng., Paris (2013).

  13. A. Zahmatkesh and A. J. Choobbasti, "Settlement evaluation of soft clay reinforced by stone columns, considering the effect of soil compaction," Int. J. Res. Rev. Appl. Sci., 3(2), 159-166 (2010).

    Google Scholar 

  14. S. Murugesan and K. Rajagopal, "Geosynthetics-encased stone columns: Numerical evaluation," Geotex. Geomembranes, 24(6), 349-358 (2006).

    Article  Google Scholar 

  15. U. Kumar, Y. K. Tandel, and C. H. Solanki, "Effect of geosynthetics encasement on sand column in soft soil," Int. J. Struct. Civil Eng. Res., 2(3), 141-146 (2013).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Curtin University, Perth, Australia

    D. Mujah

  2. Curtin University, Sarawak, Malaysia

    K. S. Siaw & S. Tasnim

Authors
  1. D. Mujah
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. K. S. Siaw
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S. Tasnim
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 6, p. 6, November-December, 2015.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mujah, D., Siaw, K.S. & Tasnim, S. Numerical Modelling of the Consolidation Behavior of Peat Soil Improved by Sand Columns. Soil Mech Found Eng 52, 317–321 (2016). https://doi.org/10.1007/s11204-016-9347-y

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11204-016-9347-y

Keywords

Search

Navigation