SEEPAGE CONSIDERATIONS AND STABILITY OF SANDY SLOPES REINFORCED BY ANCHORED GEOSYNTHETICS

Stability against shallow mass sliding as well as surface erosion and piping in sandy slopes depends on the flow direction, particularly near the ground surface. The flow regime near the surface is very important in anchored slopes because an anchored net or fabric fastened to the slope causes undulations or irregularities on the surface which in turn affect the flow pattern and stability of the slope. This influence of an undulating surface was investigated by analyzing slopes with different surface topographies, boundary configurations (or shapes), and internal drainage conditions. Numerical solutions show that the flow direction near undulating surfaces can adversely affect stability. The solutions appeared to be in good agreement with experimental observations. Flow net analyses also suggest that adverse seepage conditions near undulating surfaces can be corrected by inserting drains at anchor locations.

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  • Corporate Authors:

    Industrial Fabrics Association International

    345 Cedar Building, Suite 450
    St Paul, MN  United States  55101-1088
  • Authors:
    • Ghiassian, H
    • GRAY, D H
    • Hryciw, R D
  • Conference:
    • Geosynthetics '97
    • Location: Long Beach, California, U.S.A.
    • Date: 1997-3-11 to 1997-3-13
  • Publication Date: 1997

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 581-593

Subject/Index Terms

Filing Info

  • Accession Number: 00795493
  • Record Type: Publication
  • ISBN: 0935803076
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: Jul 14 2000 12:00AM