The most serious disorders which can occur in slopes are (1) the sliding of block(s) along the discontinuing surfaces which exist at the opening of trenches and (2) rock falls or sliding of block(s) resulting from the rapid change in the mechanical characteristics of the rock bench which supports them. The forecast of simple slides is based on the detailed analysis of the geometry of discontinuing surfaces. This analysis can often be very difficult because of insufficiently precise data on discontinuity distribution and evolution in shear strength. The prediction of mass rock falls caused by the rapid change in rock benches liable to weathering is based on a detailed geological and mineralogical study and laboratory test results. These weathering test can give an assessment of the weathering properties of materials taking account of the special physico-chemical conditions of a given structure. By taking into consideration the results of the above studies and tests, it is possible to select a satisfactory solution which is a happy medium between safety, and economy. See also IRRD abstract no. 100546. /TRRL/

  • Authors:
    • Struillou, R
  • Publication Date: 1971-7-15


  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096686
  • Record Type: Publication
  • Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Aug 27 1975 12:00AM