The procedures for the design of stable slopes described here are based on the measurement of strength properties and the methods of stability analysis described in the previous chapters. The procedures can also be applied to preconstructed slopes and to the correction of existing landslides. The philosophy of design is set forth and the safety factor is defined. The design procedures are categorized into 3 broad groups; avoid or eliminate problem; reduce the forces tending to cause movement; and increase forces resisting movement. In the first category the importance of the geological reconnaissance is noted, and the removal of materials and bridging is discussed. For the reduction of driving forces, three categories of action are suggested: change of line or grade; surface drainage and subsurface drainage; and the reduction of weight. The third general method for stabilizing earth slopes, increasing resisting forces, involves two basic principles: application of resiting force at the toe of the side (buttress or counterweight fills, pile systems, and anchor systems); and strengthening materials in failure zone (subsurface drainage; chemical treatment; electroosmosis, and thermal treatment).

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    • This paper was published in TRB Special Report 176, Landslides: Analysis and Control. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Gedney, David S
    • Weber Jr, William G
  • Publication Date: 1978

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  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 172-191
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  • Accession Number: 00193494
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: May 26 1979 12:00AM