ANALYSIS OF CHABOT DAM DURING THE 1906 EARTHQUAKE

During the San Francisco 1906 earthquake, Chabot Dam which is an earth-fill dam located south of Oakland, California and approximately 20 miles from the San Andreas fault, was shaken severely by the earthquake but suffered no significant damage. In recent years a dynamic analysis approach has been proposed for the analysis of seismic stability of earth dams and embankments during earthquake loading conditions. This approach has been used to analyze the failure of the Sheffield Dam during the 1925 Santa Barbara earthquake and the slides in the San Fernando Dams during the 1971 earthquake. This paper examines the applicability of the dynamic analysis procedure by evaluating the behavior of a dam that did not suffer any serious damage under conditions of strong ground motions (similar to those occurring during the 1906 earthquake) using the results of an extensive field and laboratory testing program. The resulting element strain potentials are computed and an approximate fininte element procedure is used to integrate these strain potentials into an overall embankment deformation pattern. The computed deformations were found to be in reasonable agreement with the behavior of the embankment during the 1906 earthquake. The potential usefulness and limitations of the method of analysis are also discussed. /Author/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 569-587

Subject/Index Terms

Filing Info

  • Accession Number: 00179768
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM