POST-EARTHQUAKE STABILITY ANALYSIS OF EARTH DAMS

An approach to post-earthquake stability analysis of earth dams is presented. First, a finite element evaluation of the dynamic stresses induced within the dam as a result of the anticipated earthquake is determined. Then the residual undrained static shear strength after the earthquake is determined from the laboratory static triaxial tests on soil samples subjected to cyclic loading. The cyclic loading used corresponds to the dynamic shear stresses and the equivalent number of cycles induced in the critical element due to the anticipated earthquake. Finally, a limit equilibrium analysis is performed using the residual undrained static shear strength to evaluate the post-earthquake stability of the dam. In some cases post-earthquake stability is more critical than the stability during the earthquake. /Author/

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 762-776

Subject/Index Terms

Filing Info

  • Accession Number: 00179779
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM