WINTER MAINTENANCE AND SNOW CLEARING EQUIPMENT IN TROMS COUNTRY

SNORYDDING OG SNORYDDINGSATSTYR I TROMS

The building of snowsheds is one of the more common means of protecting roads from snow avalanches. This paper discusses the most important forces on snowsheds and also gives 3 examples on the actual geometry of snowsheds from the E76 Haukelivegen. The forces caused by the snow may be split into the following components: 1. Weight of snow on the roof; 2. Lateral forces from the avalanche; 3. Mass of snow activated by avalanche; 4. Friction; 5. Earth pressure on the retaining wall; 6. Suction forces; 7. Forces on the "free" side of the snowshed. In order to calculate the magnitude of the different forces, one has to guess the height (or the extent), density and velocity of the avalanche. For the 3 example cited, special attention has been paid to the horizontal forces. When the snowshed was placed in loose deposits, horizontal forces were dissipated by making a retaining concrete wall of great flexural rigidity on a rather large footing. In rocky terrain, the snowshed is simply anchored to solid rock. Finally, the article discusses geometry for future snowsheds and also considered snowsheds directly connected to tunnels.

• Corporate Authors:

  Norwegian Road Research Laboratory

  Postboks 8109, Gaustadalleen 25
  Oslo,   Norway 
• Authors:
  • Solberg, H
• Publication Date: 1975-12

Language

• Norwegian

Media Info

• Features: Figures;
• Pagination: p. 53-57
• Serial:
  • Issue Number: 49

Subject/Index Terms

• TRT Terms: Avalanches; Earth pressure; Geometry; Retaining walls; Snow; Stresses
• Old TRIS Terms: Horizontal stresses
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00133964
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 23 1976 12:00AM