MAINTENANCE AND SAFETY OF ROCK CUT SLOPES

THE DUTY OF THE DESIGN ENGINEER IS TO PROVIDE MAXIMUM PUBLIC SAFETY AND MINIMUM MAINTENANCE REQUIREMENTS. HOWEVER, THESE ARE DIFFICULT IN THE DESIGN OF ROCK CUT SLOPES UNLESS NATURE'S REQUIREMENTS FOR STABILITY OF THE SLOPE ARE DULY RECOGNIZED. UNLIKE SOIL MECHANICS WHERE THE POTENTIAL FAILURE IS ASSUMED TO BE CIRCULAR OR PLANAR, THE SLIDING SURFACE WITHIN A ROCK MASS IS CONTROLLED BY THE PRESENCE AND ORIENTATION OF STRUCTURAL DISCONTINUITIES. SO IT IS IMPORTANT THAT A FIRST STEP IN ANY ROCK CUT DESIGN ANALYSIS BE A THOROUGH GEOLOGIC STUDY OF THE AREA, INCLUDING MAPPING OF ALL OUTCROPPINGS AND OTHER PERTINENT LANDFORMS. THIS IS FOLLOWED BY AN EXTENSIVE SUBSURFACE EXPLORATION PROGRAM WHICH INCLUDES DETERMINATION OF EXISTING GROUNDWATER COUNDITIONS WITHIN THE CUT SECTION. ATTENTION IS ALSO PAID TO DESIGN CONSIDERATIONS, LOCKED-IN STRESSES, DESIGN ALTERNATES AND ROCK BENCHES.

  • Supplemental Notes:
    • Vol 2, No 5, PP 91-102, 11 FIG, 3 REF
  • Authors:
    • Gedney, D S
  • Publication Date: 1970-12

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Filing Info

  • Accession Number: 00235897
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 16 1971 12:00AM