In this article, the author discusses the problem of rock erosion, in relation to the failure of some bridges in India with rock foundations. External factors influencing rock erosion are: current velocity; mean particle size of material overlaying the rock surface; depth at which rock is met; and the frequency and duration of flooding. The author concludes that: (1) There is an optimum or critical velocity corresponding to a particular particle size which can create more erosion than heavy flooding, in the life span of a structure; (2) igneous, sandstone, and gneissic rocks are non erodible provided there are no discontinuities in the rock mass; and (3) a standard procedure for testing erosion of rock needs to be developed.

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Sarma, KSM
  • Publication Date: 1990-1


  • English

Media Info

  • Pagination: p. 27-31
  • Serial:
    • Indian Highways
    • Volume: 18
    • Issue Number: 1
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00606019
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS, ATRI
  • Created Date: Mar 31 1991 12:00AM