DIMPLIFIED SEISMIC ANALYSIS FOR TAILINGS DAMS

The designer is often confronted with problems of quantifying many abstract phenomena as an aid to judgement decisions. This paper presents one such method for approximating the increases in pore pressures that might be expected within a dam or embankment during an earthquake, with particular reference to sand-fill tailings dams. Characteristics of sand-fill tailings dams that are significant to the liquefaction phenomenon are described. Detailed steps are presented for using the method in conjunction with a conventional psuedo-static form of stability analysis. Attention is given to suddenly-applied, undrained shear loadings within a tailings dam occasioned by sudden liquefaction of the tailings in the pond at the outset of the earthquake. The principal approximations entailed in the method are discussed, but space does not permit a full discussion of all factors that must be considered when interpreting an analysis based on the method. Such judgements requre a thorough grounding in geotechnical engineering in general and the liquefaction phenomenon in particular. /Author/

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 540-556

Subject/Index Terms

Filing Info

  • Accession Number: 00179766
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM