PERFORMANCE PREDICTION OF PREFABRICATED VERTICAL DRAIN IN SOFT SOIL USING FINITE ELEMENT METHOD

Authors

  • Teh Zhi Huan Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Rini Asnida Abdullah Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd For Mohd Amin Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd Azril Hezmi Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Ahmad Safuan A Rashid Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd Nur Asmawisham Alel Geoengineering and Geohazard Research Group, Department of Geotechnics and Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia

DOI:

https://doi.org/10.11113/jt.v76.5435

Keywords:

Prefabricated vertical drain, Asaoka’s method, finite element method

Abstract

Prefabricated vertical drain (PVD) had successfully been applied in many soft ground construction projects. Finite element method (FEM) could assist designers to model very complex subsoil and structural elements. In this study, finite element analysis (FEA) is performed to verify the effectiveness of modelling of PVD in subsoil using computer software, Plaxis V8. The field settlement data were collected at two particular locations and were analysed using Asaoka’s method to estimate the ultimate settlement and back-calculated the coefficient of horizontal consolidation for these two particular location. Thereafter, by using back-calculated coefficient of horizontal consolidation, FEA were performed to predict the time rate settlement and compared against field settlement results. From the time rate settlement curves generated by FEM, the ultimate settlements were predicted using Asaoka’s method. The ultimate settlement predicted from FEM is slightly lower compared to actual field settlement monitoring result, but the degree of consolidation settlement achieved were higher.

References

Hansbo, S. 1981. Consolidation of Fine-Grained Soils by Prefabricated Drains. Proc. 10th Int. Conf. Soil Mech. and Found. Engg. International Society of Soil Mechanics and Foundation Engineering, Stockholm. 3(3): 677–682.

Lin, D. G., Kim, H. K. and Balasubramaniam, A. S. 2000. Numerical Modeling of Prefabricated Vertical Drain. Geotechnical Engineering Journal. 31(2): 109-125.

Asaoka, A. 1978. Observational Procedure of Settlement Prediction. Soils and Foundation. 18(4): 87 – 101. Dec. 1978, Japanese Society of Soil Mechanics and Foundation Engineering.

Plaxis. 2002. Plaxis Finite Element Code for Soil and Rock Analyses. 2D-Version 8. Plaxis BV, Delft, The Netherlands.

Arulrajah, A., Nikraz, H. and Bo, M. W. 2005. Finite Element Modelling of Marine Clay Deformation under Reclamation Fills. Ground Improvement. 9(3): 105-118.

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Published

2015-09-08

Issue

Vol. 76 No. 2: Advances in Geotechnical Engineering

Section

Science and Engineering

License

Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

PERFORMANCE PREDICTION OF PREFABRICATED VERTICAL DRAIN IN SOFT SOIL USING FINITE ELEMENT METHOD. (2015). Jurnal Teknologi (Sciences & Engineering), 76(2). https://doi.org/10.11113/jt.v76.5435