DISPLACEMENTS OF REINFORCED SLOPES SUBJECTED TO SEISMIC LOADS

Traditional analyses of stability of slopes subjected to seismic loads entail global equilibrium considerations with seismic influence included as a quasi-static force. Such an analysis does not reflect the earthquake shaking process, and it does not provide any information about permanent displacements that may have occurred as a result of that process. Earthquake events in recent years have brought about renewed interest in analyses of slopes subjected to seismic loads. This paper focuses on displacement calculations of reinforced slopes. Design of reinforced slopes using the quasi-static approach may lead to an unrealistically long reinforcement for large ground accelerations. If slopes are allowed to move by even a small displacement, then the reinforcement length can be reduced significantly. Two mechanisms of failure of reinforced slopes subjected to seismic conditions are considered: rotational collapse, and sliding directly over the bottom layer of reinforcement. Yield accelerations and integrals of seismic records are presented in charts for easy use in practical applications. An example is shown to illustrate the method.

  • Availability:
  • Supplemental Notes:
    • This work was sponsored by the National Science Foundation, Washington, D.C., Nos. CMS-9634193 and CMS-9820832.
  • Corporate Authors:

    American Society of Civil Engineers

    1801 Alexander Bell Drive
    Reston, VA  United States  20191-4400
  • Authors:
    • Michalowski, R L
    • You, L
  • Publication Date: 2000-8

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00795804
  • Record Type: Publication
  • Contract Numbers: CMS-9634193, CMS-9820832, CMS-98-13226
  • Files: TRIS
  • Created Date: Jul 31 2000 12:00AM