DRAWDOWN ANALYSIS OF SLOPES BY NUMERICAL METHOD

A numerical procedure is used to analyze slopes subjected to transient free surface seepage. The procedure combines a finite element scheme with a method of slope-stability analysis. The finite element scheme allows computations of time dependent locations of free surface, and the stability analysis method permits computation of factor of safety. The final results are plotted in terms of charts expressed through a number of nondimensional quantities. It is found that the value of the lowest factor of safety by the proposed procedure is approximately equal to that from the conventional assumption of sudden drawdown. The procedure can be found to be more economical if the designer can adopt drawdown ratios less than unity. The numerical procedures can provide an improved understanding of the behavior of slopes during transient drawdown conditions. /Author/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Desai, C S
• Publication Date: 1977-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 667-676
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 103
  • Issue Number: GT7
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Calculation; Drawdown (Hydraulics); Finite element method; Safety; Sedimentation; Slope stability; Time dependence
• Uncontrolled Terms: Computation
• Old TRIS Terms: Drawdown; Finite elements; Replicating
• Subject Areas: Geotechnology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00165901
• Record Type: Publication
• Report/Paper Numbers: ASCE 13054
• Files: TRIS
• Created Date: Apr 12 1978 12:00AM