BOULDER UPHEAVAL. REPORT ON INVESTIGATIONS MADE DURING 1983-1984

BLOCKUPPFRYSNING I KRONOBERGS LAEN. REDOVISNING AV UNDERSOEKNINGAR UTFOERDA PAA VAEG 23, 25 OCH 682 UNDER 1983-1984

An investigation was undertaken in 1983 by the Road Division of VTI into the three main factors influencing boulder upheaval in roads (climate, soil type, moisture content) and their significance. Test sites were chosen on three roads within a radius of 25 km from Vaexjoe. Field investigations were held during the autumn of 1983 and follow-up measurements in groundwater tubes and frost depth measurements have continued. The results show that the subgrade material on all three test stretches consisted of till which is extremely frost-susceptible, and that a lot of groundwater existed. However as the winter of 1983/1984 was very mild, no representative frost depth could be obtained. In normal winters frost forces up boulders lying in the upper part of the formation. Alternating mild and cold winters slow down the boulder upheaval in southern Sweden compared to the northern countries. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03476049
• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Enkell, K
  • Svensson, J
• Publication Date: 1985

Language

• Swedish

Media Info

• Features: Figures; Tables;
• Pagination: 132 p.
• Serial:
  • VTI meddelande
  • Issue Number: 435
  • Publisher: Swedish National Road and Transport Research Institute (VTI)
  • ISSN: 0347-6049

Subject/Index Terms

• TRT Terms: Climate; Field studies; Frost susceptibility; Groundwater; Moisture content; Properties of materials; Soils; Till
• Uncontrolled Terms: Heaving; Soil properties
• Old TRIS Terms: Field investigations
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00471288
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Jun 30 1987 12:00AM