Influence of high voltage gradients on electrokinetic dewatering for Wenzhou clay slurry improvement ВЛИЯНИЕ ВЫСОКОВОЛЬТНЫХ ГРАДИЕНТОВ НА ЭЛЕКТРОКИНЕТИЧЕСКОЕ ОБЕЗВОЖИВАНИЕ ИЛА

Hongtao Fu, Lili Yuan, Wang Jun, Yuan qiang Cai


Проведены лабораторные эксперименты для определения оптимального градиента напряжения электрокинетической консолидации глинистого ила с небольшим количеством мелкого песка. Результаты показали, что стабильный ток был достигнут при относительно низких градиентах напряжения (0,5 В/см), в то время как более высокие градиенты напряжения (1 В/см) сократили время
дренирования. Градиент напряжения больше 1,0 В/см не оказал на степень дренажа существенного влияния. Большее снижение температуры было достигнуто при более высоких градиентах напряжения. Объёмы испарившейся и электролитической воды увеличивались с повышением градиента

Полный текст статьи будет опубликован в английской версии журнала
"Soil Mechanics and Foundation Engineering".


E. Mohamedelhassan, and J. Q. Shang, "Electrokinetics-generated pore fluid and ionic transport in an offshore calcareous soil," Canadian Geotechnical Journal, 40(6), 1185-1199(2003).

J. Koryta, Ions, Electrodes, and Membranes, John Wiley and Sons, Inc., New York, (1991).

L. Casagrande, "Electro-Osmosis in Soils," Géotechnique,1(1), 159-177(1949).

S. Glendinning, C. J. F. P. Jones and R. C. Pugh, "Reinforced Soil Using Cohesive Fill and Electrokinetic Geosynthetics," International Journal of Geomechanics,5(2),138-146(2005).

A. B. Fourie, D. G. Johns and C. F. Jones, "Dewatering of mine tailings using electrokinetic geosynthetics," Canadian Geotechnical Journal, 44(2), 160-172(2007).

Y. F. Zhuang and Z. Wang, "Interface Electric Resistance of Electroosmotic Consolidation," Journal of Geotechnical and Geoenvironmental Engineering, 133(12), 1617-1621(2007).

C. J. F. P. Jones, J. Lamont-Black, S. Glendinning, et al., "Recent research and applications in the use of electrokinetic geosynthetics," 4th European Geosynthetics Conference, Edinburgh, UK, 1-30(2008).

H. Wu, L. Hu, L. Zhang, et al., "Transport and Exchange Behavior of Ions in Bentonite during Electro-Osmotic Consolidation," Clays and Clay Minerals, 63(5), 395-403(2006).

J. Q. Shang, "Zeta potential and electroosmotic permeability of clay soils," Canadian Geotechnical Journal, 34(34), 627-631(1997).

J. Q. Shang, "Electroosmosis-enhanced preloading consolidation via vertical drains, " Canadian Geotechnical Journal, 35(3), 491-499(2011).

S. Micic, J. Q. Shang, K. Y. Lo, Y. N. Lee and S. W. Lee,"Electrokinetic strengthening of a marine sediment using intermittent current," Canadian Geotechnical Journal, 38(2), 287-302(2001).

H. Yoshida, K. Kitajyo and M. Nakayama, "Electroosmot1c dewatering under a. c. electric field with periodic reversals of electrode polarity," Drying Technology,17(3), 539-554(1998).

H. Wu and L. Hu, "Analytical solution for axisymmetric electro-osmotic consolidation," Géotechnique, 63(12), 1074-1079(2013).

T. L. T. Zhan, X. J. Zhan, Y. Feng and P. Chen, "Electrokinetic Dewatering of Sewage Sludge with Fixed and Moving Electrodes: Attenuation Mechanism and Improvement Approach," Journal of Environmental Engineering,142(1), 1943-7870(2015).

M. I. Esrig, "Pore pressures, consolidation, and electrokinetics," Journal of Soil Mechanics and Foundation Division, 94(4), 899-921(1968).

M. Arnold, "Laboratory determination of the coefficient of electro-osmotic permeability of a soi," Geotechnique, 23(4), 581-588(1973).

L. Bjerrum, J. Moum and O. Eide, "Application of Electro-Osmosis to a Foundation Problem in a Norwegian Quick Clay," Géotechnique, 17(3), 214-235(1967).

R. L. Nicholls and R. L. Herbst, "Consolidation under Electrical-pressure Gradients," Journal of the Soil Mechanics and Foundations Division, 93(5), 139-151(1967).

N. C. Lockhart, "Electroosmotic dewatering of clays. I. Influence of voltage," Colloids and Surfaces, 6(3), 229-238 (1983a).

N. C. Lockhart, "Electroosmotic dewatering of clays. III. Influence of clay type, exchangeable cations, and electrode materials," Colloids and Surfaces, 6(3), 253-269(1983b).

Y. Li, "Experimental and theoretic study on electro-osmotic consolidation of soft clay foundation," Zhejiang University, Zhejiang, 103-105 (2011).

S. R. Kaniraj, H. L. Huong and J. H. S. Yee, "Electro-Osmotic Consolidation Studies on Peat and Clayey Silt Using Electric Vertical Drain," Geotechnical and Geological Engineering, 29(3), 277-295(2011).

H. T. Fu, Y. Q. Cai, J. Wang, P. Wang, "Experimental Study on the Combined Application of Vacuum Preloading–Variable-Spacing Electro-Osmosis to Soft Ground Improvement, " Geosynthetics International, 24(1), 72-81(2017).

D. L. Corwin, S. M. Lesch, "Apparent soil electrical conductivity measurements in agriculture," Computers and Electronics in Agriculture, 46(1–3), 11-43(2005).

F. Burnotte, G. Lefebvre and G. Grondin, "A case record of electroosmotic consolidation of soft clay with improved soil electrode contact," Canadian Geotechnical Journal, 41(6), 1038-1053(2004).

V. K. Stalin, A. S. Devi, and R. B. A. Murugan,"Influence of IMC, Spacing, and Voltage on the Effectiveness of Electro-Kinetic Phenomena of Soil Stabilization," Geo-Frontiers Congress, 957-966 (2011).

N. M. Rostami, D. Aldulaimi, S. Ishaq, et al.,"Geographic trends and risk of gastrointestinal cancer among patients with celiac disease in Europe and Asian-Pacific region," Gastroenterology and Hepatology from Bed to Bench, 6(4), 170-177(2013).

S. Jayasekera,"Electrokinetics to modify strength characteristics of soft clayey soils: a laboratory based investigation," Electrochimica Acta, 181, 39-47(2015).


  • На текущий момент ссылки отсутствуют.