Advertisement

Numerical Modelling of Reinforced Stone Columns and Bamboo Mattress for Supporting Causeway Embankment on Soft Soil Bed

  • Ardy Arsyad
  • Lawalenna Samang
  • A. Bakri Muhiddin
  • Tri Harianto
  • A. R. Djamaluddin
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

This paper presents numerical model of reinforcement of causeway embankment over soft soil deposit using bamboo grid mattress and stone columns. A series of experimental tests were undertaken to obtain several mechanical parameters of stone columns, and mechanical characteristics of bamboo grid. The soft soil is silty clay in deep layer in which its index and engineering properties derived from oedometer tests. FEM model of a causeway embankment over bamboo grid mattress overlying deep soft soil reinforced by a group of granular columns encased with geotextile, was developed. To validate the FEM model, full scale experimental of similar model was conducted. It was found that FEM model is well agreement with the experimental model. The result explains the stress-strain behavior in bamboo grid mattress and stone columns, interacted with the soft soil as response to increasing embankment height. Bamboo grid mattress enhances the bearing capacity of the soft soil in supporting embankment leading to the decrease of settlements, while stone columns affect the acceleration of consolidation of the soft soil. The results would be beneficial for application of local natural materials such as bamboo for soft soil reinforcement as bamboo is widely available in developing Asian countries.

Keywords

Stone columns and bamboo mattress Soft soil bed Settlement Drain Reinforcement 

Notes

Acknowledgements

We would like to express our gratitude to Pelindo IV Makassar Indonesia for providing experiment facility for field tests during the study. We would like to thank for Arwin, Ilham Jafar, Kemal Tharik, and Muhammad Alfa for sharing valuable data and excellent support during experimental test.

References

  1. Abusharar, S.W., Zheng, J.J., Chen, B.B., Yin, J.H.: A simplified method for analysis of a piled embankment reinforced with geosynthetics. Geotext. Geomembr. 27(1), 39–52 (2009)CrossRefGoogle Scholar
  2. Basack, S., Rujiatkamjorn, C.: Analysis of the behaviour of stone column stabilized soft ground supporting transport infrastructure. Procedia Eng. 143, 347–356 (2016)CrossRefGoogle Scholar
  3. Deb, K.: A mathematical model to study the soil arching effects in stone columns-supported embankment resting on soft foundation soil. Appl. Math. Model. 34(12), 3871–3883 (2010)CrossRefGoogle Scholar
  4. Fatahi, B., Basack, S., Premananda, S., Khabbaz, H.: Settlement prediction and back analysis of young modulus and dilation angle of stone columns. Aust. J. Civil Eng. 10(1), 67–79 (2012)CrossRefGoogle Scholar
  5. Guetif, Z., Bouassida, M., Debats, J.M.: Improved soft clay characteristics due to stone column installation. Comput. Geotech. 34, 104–111 (2007)CrossRefGoogle Scholar
  6. Hedge, A., Sitharam, T.G.: Use of bamboo in soft ground engineering and its performance comparison with geosynthetics: experimental studies. J. Mater. Civil Eng. 27(9) (2015)Google Scholar
  7. Indraratna, B., Basack, S., Rujikiatkamjorn, C.: Numerical solution of stone column improved soft soil considering arching, clogging, and smear effects. J. Geotech. Geoenvironmental Eng. 139(3), 377–394 (2013)CrossRefGoogle Scholar
  8. Low, B.K., Tang, S.K., Choa, V.: Arching in piled embankment. J. Geotech. Eng. 120(11), 1917–1938 (1994)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Ardy Arsyad
    • 1
  • Lawalenna Samang
    • 1
  • A. Bakri Muhiddin
    • 1
  • Tri Harianto
    • 1
  • A. R. Djamaluddin
    • 1
  1. 1.Department of Civil Engineering, Faculty of EngineeringHasanuddin UniversityMakassarIndonesia

Personalised recommendations