Abstract
Electro-osmosis consolidation seems to be a potential technique for improvement of soft clay. The traditional electro-osmosis theory cannot provide satisfied solution since the hypothesis of constant parameters of mechanical and electrical properties of soils. In this paper, FEM software is developed to couple the Lapalace&s equation for electrical field with Biot&s consolidation equation, and the displacement of soil mass and pore-water pressure can be obtained during electro-osmosis process. The non-linear variety of hydraulic permeability of soil mass during consolidation is incorporated in the control equations. The boundary conditions for electrical field, seepage flow and displacement can be adequately simulated. The calculation results agree well with the monitoring data from analytical model. The software can predict the displacement behavior of soil mass and provide useful data for system design of electro-osmosis treatment.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Banerjee S & Vitayasupakorn V (1984). Appraisal of electro-osmotic oedometer tests. Journal of Geotechnical Engineering, 110(8): 1007–1023.
Bergado DT, Balasubramanium AS, Patawaran MAB, et al. (2000). Electro-osmotic Consolidation of Soft Bangkok Clay with Prefabricated Vertical Drains. Ground Improvement Journal, (4): 153–163.
Bernatzikc W (1948). Contribution to the problem of seepage pressure in electro-osmosis, Proceedings of the 2nd International Conference on Soil Mechanics and Foundation Engineering, 7: 65–66.
Casagrande L (1983). Stabilization of soils by means of electroosmotic state-of-art. Journal of Boston Society of Civil Engineering, ASCE, 69(3): 255–302.
Casagrande L (1948). Electroosmosis in soils. Geotechnique, 1:159–177.
Chen JL & Murdonch L (1999). Effects of electroosmosis on natural soil: field test. Journal of Geotechnical and Geo-environmental Engineering, 125(12): 1090–1098.
Davis EH & Poulos HG (1980). The relief of negative skin friction on piles by electro-osmosis. Proceedings of the 3rd Australian and New Zealand Conference on Geomechanics, 1: 71–77.
Eggestad A & Foyn T (1983). Electro-osmosis improvement of a soft sensitive clay. Proceedings of the 3rd European Conference on Soil Mechanics and Foundation Engineering: 597–603.
Esrig MI & Gemeinhardt JP (1967). Electrokinetic stabilization of an illitic Clay. Journal of the Soil Mechanics and Foundations Division, ASCE, 93 SM3(5): 109–128.
Feldkamp JR & Belhomme GM (1990). Large-Strain Electrokinetic Consolidation — Theory and Experiment in One Dimension. Geotechnique, 40(4): 557–568.
Fetzer CA (1967). Electroosmotic stabilization of west branch dam. Journal of the Soil Mechanics and Foundations Division, ASCE, 93 SM4(7): 85-106.
Fourie AB, Johns DG, Jones CJFP (2007). Dewatering of mine tailings using electrokinetic geosynthetics. Canadian Geotechnical Journal, 44(2): 160–171.
Glendinning S, Jones CJFP, Pugh RC (2005). Reinforced soil using cohesive fill and electrokinetic geosynthetics. International Journal of Geomechanics, ASCE, 5(2): 138–146.
Glendinning S, Lamont-Black J, Jones CJFP, Hall J (2008). Treatment of lagooned sewage sludge in situ using electrokinetic geosynthetics. Geosynthetics International, 15(3): 192–204.
Hong HQ & Hu LM (2007). Experimental study of electro-osmosis by reversing polarity in kaolin clay. The 1st Sri Lankan Geotechnical Society International Conference on Soil and Rock Engineering, Colombo.
Jones CJFP, et al. (2008). Recent research and applications in the use of electro-kinetic geosynthetics. Keynote paper, the 4th European Geosynthetics Conference, Edinburgh, UK.
Laursen S (1997). Laboratory investigation of electroosmosis in bentonites and natural clays. Canadian Geotechical Journal, 34(5): 664–671.
Lefebvre G & Burnotte F (2002). Improvement of electro-osmotic consolidation of soft clays by minimizing power loss at electrodes. Canadian Geotechical Journal, 39(2): 399–408.
Lo KY, Ho KS, Inculet II (1991). Field Test of Electro-Osmosis Strengthening of Soft Sensitive Clay. Canadian Geotechical Journal, 28(1): 74–83.
Lo KY & Ho KS (1991). Electroosmotic strength of soft sensitive clays. Canadian Geotechnical Journal, 28(1): 62–73.
Micic S, Shang JQ, Lo KY, et al. (2001). Electro-kinetic strengthening of a marine sediment using intermittent current. Canadian Geotechical Journal, 38(22): 287–302.
Mitchell JK & Soga K (2003). Fundamentals of soil behavior. The 3rd Edition, John Wiley & Sons, Inc, USA.
Mohamedelhassan E & Shang JQ (2002). Vacuum and surcharge combined one-dimensional consolidation of clay soils. Canadian Geotechical Journal, 39(5): 1126–1138.
Nettleton IM, Jones CJFP, Clark EBG, et al. (1998). Electrokinetic geosynthetics and their applications. The Sixth International Conference on Geosynthetics, USA.
Perry W. Electro-osmosis dewaters foundation excavation Construction Methods and Equipment, 1963, 45(9): 116–119.
Rittirong A & Shang JQ (2008). Numerical analysis for electro-osmosis consolidation in two-dimensional electric field. Proceedings of 18th International Offshore and Polar Engineering Conference, Vancouver, Canada: 566–572.
Shang JQ & Dunlap WA (1998). Pullout resistance of high voltage strengthen ground anchors. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 124(9): 840–845.
Weiss CA, Malone PG, Hock VF, et al. (2005). Use of small-scale electro-osmotic systems in controlling groundwater movement around structures. Environmental & Engineering Geoscience, 11(1): 53–60.
Zhuang YF & Wang Z (2007). Interface electric resistance of electro-osmotic consolidation, Journal of Geotechnical and Geoenvironmental Engineering, ASCE. 133(12): 1617–1621.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Zhejiang University Press, Hangzhou and Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Hu, L., Wu, WL., Wu, ZQ. (2010). Numerical Simulation Of Electro-Osomosis In Soft Clay. In: Chen, Y., Zhan, L., Tang, X. (eds) Advances in Environmental Geotechnics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04460-1_29
Download citation
DOI: https://doi.org/10.1007/978-3-642-04460-1_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04459-5
Online ISBN: 978-3-642-04460-1
eBook Packages: EngineeringEngineering (R0)