NUMERICAL ANALYSIS OF ELECTRO-OSMOTIC FLOW IN SOILS

THE SOLUTION OF TWO-DIMENSIONAL TRANSIENT SEEPAGE PROBLEMS UNDER THE INFLUENCE OF BOTH ELECTROKINETIC AND HYDRODYNAMIC FORCES IS FOUND USING THE FINITE ELEMENT METHOD. THE GOVERNING DIFFERENTIAL EQUATIONS ACCOUNT FOR BOTH THE TIME- DEPENDENT CONSOLIDATION AND THE TIME-DEPENDENT STORAGE ELECTRICITY OF THE SOIL MEDIA. SOLUTIONS TO THE PROBLEM ARE PRIMARILY PRESENTED AS THE MOVEMENT OF THE PHREATIC SURFACE WITH TIME, BUT PORE WATER VELOCITIES, HYDRAULIC, AND ELECTRIC POTENTIALS AT THE NODES ARE ALSO CALCULATED IN THE PROGRAM. A PRACTICAL PROBLEM, WHERE ELECTRO-OSMOSIS WAS USED BECAUSE NORMAL DEWATERING METHODS HAVE PROVED INEFFECTIVE, WAS ANALYZED USING THE NUMERICAL MODEL. THE MAIN ADVANTAGE OF THE NUMERICAL MODEL IS THAT THE ELECTRODE CONFIGURATION CAN EASILY BE CHANGED TO ENABLE THE MOST EFFICIENT ARRANGEMENT TO BE DETERMINED. /AUTHOR/

• Supplemental Notes:
  • Rept No 9912
• Authors:
  • Lewis, R W
  • HUMPHESON, C
• Publication Date: 1973-8

Media Info

• Pagination: p. 603-16
• Serial:
  • Journal of Soil Mechanics & Foundations Div
  • Volume: 99
  • Issue Number: sm8

Subject/Index Terms

• TRT Terms: Differential equations; Electric potential; Electrokinetics; Finite element method; Hydrodynamics; Numerical analysis; Soils
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00238166
• Record Type: Publication
• Report/Paper Numbers: Proc Paper
• Files: TRIS
• Created Date: Dec 22 1973 12:00AM