This article describes the present state of technology in the field of earthwork construction. The treatment and classification of soils, plant development, the use of synthetic textiles and improved materials are all dealt with. Two examples of plant development are the hydraulic excavator and the vibratory compactor. Hydraulic excavators are capable of twice the work rate of cable controlled units, the vibratory roller requires far less driving power than its rivals. The progress of soil treatment in situ has been restricted by the availability of materials and accuracy of spreaders; the spreading and mixing of pulverised material is a difficult operation. Synthetic textiles in woven and non-woven forms have a high resistance to tension, good drainage and filtration properties, and they combine readily with soils. The classification of soils in the light of their intended use as construction materials is of prime importance, and dealt with in a document "guide to the use of soils in embankments and formation layers" published by the French administration in 1975. Recent experimental research has shown that the water content of the material under compaction affects the depths of penetration of the roller action. The author concludes that there is now a large number of alternative solutions available to most earthwork problems, economic viability and technical practicability are not the sole factors to be considered. /TRRL/

  • Corporate Authors:

    IPC Building and Contract Journals Limited

    Surrey House, 1 Throwley Way
    Sutton, Surrey SM1 4QQ,   England 
  • Authors:
    • Leflaive, E
  • Publication Date: 1975-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00131791
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jun 5 1976 12:00AM