INTERSLICE SHEAR FORCES IN SLOPE STABILITY ANALYSES - A NEW APPROACH

A procedure for limit equilibrium slope analysis based on a realistic consideration of the mobilized interslice shear forces is presented in this paper. This new approach ensures that solutions are kinematically admissible and the possibility of convergence problems, often associated with numerical solutions, is minimized. The proposed approach recognizes the importance of slip surface geometry in estimating interslice shear forces whether vertical or non-vertical slices are used in a limit equilibrium analysis. Illustrative examples are presented and the results shown to be reasonable. The calculated factors of safety based on the new method compare very well with values based on recognized methods of analysis. Yet the method is more direct and enables a proper visualization of the transfer of mobilized normal and shear forces through a sloping soil mass above a potential slip surface. The method also gives consistent results with non-vertical slices even if the shape of non-vertical slices is varied. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00380806
• Corporate Authors:

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 
• Authors:
  • Zhang, S
  • CHOWDHURY, R N
• Publication Date: 1995

Language

• English

Media Info

• Features: References;
• Pagination: p. 65-74
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 35
  • Issue Number: 1
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Equilibrium (Mechanics); Mathematical analysis; Mathematical models; Slope stability
• ITRD Terms: 6471: Analysis (math); 7145: Equilibrium; 6473: Mathematical model; 5783: Slope stability
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00726526
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 28 1996 12:00AM