INFLUENCE OF PROGRESSIVE FAILURE ON SLOPE STABILITY

Analytical evidence is presented on the effect of cracking on the slope stability of idealized embankment-foundation sections. The embankment boundary had a circular shape and the bounded mass was homogeneous, isotropic, and linearly elastic. The technique of conformal mapping was the key to calculation of elastic stresses induced by body forces. Various combinations of parameters were applied to represent peak and residual shear strength conditions along the cracked and uncracked portions of the critical surface. The factor of safety against slope instability varies considerably with the degree of development of the crack. Full crack development yields the minimum value for progression from toe to crest. However, partial development of the discontinuity is the least safe state when the direction of development is from crest to toe. The findings seem significant, not only for slope stability, but for all problems involving a potential for progressive failure.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398
  • Authors:
    • Romani, F
    • Lovell Jr, C W
    • Harr, M E
  • Publication Date: 1972-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00044831
  • Record Type: Publication
  • Source Agency: American Society of Civil Engineers
  • Report/Paper Numbers: Proc Paper 9349
  • Files: TRIS
  • Created Date: Jul 16 1973 12:00AM