This report describes a new method of compaction with falling weights. The falling weights are usually made of steel plates piled on each other and united with strong steel bolts. Conventional methods are compared with this new method and a lot of advantages of the new method are found: there is no need of laying and packing filling layers, loose soil layers can be packed in the present state, the water-depth is no longer a conclusive argument for the possibilities of packing, the falling weight method can be used on most soils. Compaction according to the falling weight method is often called "dynamic consolidation" because of the high pore water pressure that often arises momentarily and then quickly is equalized in three-dimensional consolidation. The area that is going to be packed is often divided into smaller areas with different demands upon falling height, falling weight and compaction energy. The compaction is often carried out in many so called compaction phases. A difficulty with compaction in general is to decide when it can be finished. The pressiometer makes it possible to determine the deformation properties of the packed soil on any depth. Other methods of measurement are also discussed. (TRRL)

  • Corporate Authors:

    Svenska Vag-Och Vattenbyggaren Riksforband

    Drottningaatan 88 C, Box 1334
    S-11183 Stockholm,   Sweden 
  • Authors:
    • HANSBO, S
  • Publication Date: 1979


  • Swedish

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 1-6
  • Serial:
    • Rou Bygg
    • Publisher: Svenska Vag-Och Vattenbyggaren Riksforband

Subject/Index Terms

Filing Info

  • Accession Number: 00309589
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: 1979:1
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM