DESIGN OF DEFLECTION WALL AGAINST ROLLING STONES ON A HILL SLOPE

The authors propose building an intercepting wall on a hill for absorbing impact from boulders rolling down from a height of 200 metres and damaging the national highway from Jammu to Srinagar in India. The boulders weigh up to 20 tonnes. The relative merits of building a retaining wall or a deflecting wall are discussed. Results of site tests of loss of energy of rolling stones are given. A 38.4 percent loss is adopted in the design calculations based on these tests. Results of impact resistance and energy absorption tests on a reinforced concrete deflection wall model are also given. Different materials are placed on the cantilever slab to cushion the effect. Wired stone crates are suggested as the best form of cushioning on the basis of energy absoprtion tests. /TRRL/

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  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Arya, A S
    • Thakkar, S K
  • Publication Date: 1974-9

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 22-36
  • Serial:
    • Indian Highways
    • Volume: 2
    • Issue Number: 9
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00126058
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 19 1976 12:00AM