ELECTRO MAGNETIC FORCES AND SOIL STRENGTH

This paper describes analytical techniques for expressing electromagnetic forces of interaction in soils. Electrostatic and electrodynamic forces are included. The approach is based on expressing interaction forces in terms of physical properties of the individual components of the system (soil solids, pore-fluid, ions). The effect of the dielectric properties of the pore-fluid is emphasized. The results of the experimental programme to verify the form of the analytical solution are presented. Triaxial shear, vane shear, and activation energy for creep tests were performed on clay soils with pore-fluids exhibiting a variety of static dielectric constants. The values of activation energy and of shear strength were found to vary with static dielectric constant of the pore-fluid in the manner predicted by the proposed theory. /Author/TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Moore, C A
  • Mitchell, J K
• Publication Date: 1974-12

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 627-640
• Serial:
  • GEOTECHNIQUE
  • Volume: 24
  • Issue Number: 4
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Chemical activation; Clay; Creep; Electric insulating materials; Electricity; Electromagnetism; Insulating materials; Magnetic properties; Mechanical vanes; Physical properties; Pore water pressures; Shear strength; Shear stress; Soils; Strength of materials; Testing; Triaxial shear tests; Vane shear tests
• Old TRIS Terms: Activation; Triaxial shear
• ITRD Terms: 7126: Activation (physicochem); 4177: Clay; 4732: Creep (mater); 6954: Electricity; 6914: Insulation; 6936: Magnetism; 5762: Pore water pressure; 5531: Shear; 4156: Soil; 5544: Strength (mater); 5566: Triaxial; 6158: Vane
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00125124
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Nov 18 1975 12:00AM