ERODABILITY OF ROCK

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:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1790571
• Corporate Authors:

  Indian Roads Congress

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

Language

• 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

• TRT Terms: Bridges; Erosion; Failure; Foundations; Rock mechanics
• Geographic Terms: India
• ITRD Terms: 3455: Bridge; 5275: Erosion; 5520: Failure; 3377: Foundation; 8045: India; 5757: Rock mechanics
• Subject Areas: Bridges and other structures;

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