PROTECTION AGAINST ROCK FALLS WITH METAL NETS

PROTECTION CONTRE LES EBOULEMENTS ROCHEUX PAR FILETS METALLIQUES

Studies conducted in the field of protection against rock falls have led to the development of a system of steel cable nets which are used in the form of flexible screens installed on a slope to intercept and stop falling rocks through dissipation of their kinetic energy. Tests carried out on experimental polygones have facilitated the determination of the operational characteristics of these braking systems. The braking capacity of metal net screens is high and vastly superior to that of conventional rigid structures (masonry walls, cribs, rail-type screens), and these screens can stop blocks reaching one to several cubic meters. Modular design (5 m-long, 3 m-high units) enables screens of variable length to be erected, which would be adapted to topographic conditions. These screens are easy to erect and to maintain. Their erection is possible on very steep gradients or slopes of difficult access. (TRRL

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Rochet, L
• Publication Date: 1979-5-6

Language

• French

Media Info

• Features: Figures; Photos;
• Pagination: p. 21-28
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 101
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Alternatives analysis; Braking; Cables; Dissipation; Landslides; Lattices; Masonry construction; Prevention; Rockfalls; Rocks; Screens; Steel; Steel structures
• Uncontrolled Terms: Nets
• Old TRIS Terms: Cribs
• ITRD Terms: 1874: Braking; 4530: Cable; 4029: Landslide; 3463: Lattice; 9149: Prevention; 4154: Rock; 4542: Steel
• Subject Areas: Design; Energy; Geotechnology; Highways; Security and Emergencies; I43: Rock Mechanics;

Filing Info

• Accession Number: 00323405
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: Jun 12 1981 12:00AM