DYNAMIC CONSOLIDATION OF RECENT EMBANKMENTS: APPLICATION TO MARINE STRUCTURES

The dynamic consolidation technique is characterized by the use of large amounts of energy: a mass from 8 to 20 tons strikes the surface of the land, free-falling from 8 to 15 m at the rate of 2 to 3 blows per minute, the tamping program being determined previously as a function of the nature of the materials. The experience acquired in about 50 operations has shown that this technique, initially intended for the consolidation of very permeable materials such as rocky run-of-quarry materials, was in fact used more often in semi-impermeable saturated soils such as silts and sandy clays. The consolidation process requires in this latter case successive applications of tamping power, with intermediate rest periods, estimated on the basis of laboratory results (dynamic consolidation press). Soils of poor quality have thus become good construction materials and are capable of supporting, without unfavorable settling, structures that normally would have required a pile foundation.

• Authors:
  • Menard, L
• Publication Date: 1972-11

Language

• French

Media Info

• Pagination: p. 56-60
• Serial:
  • Travaux
  • Issue Number: 452
  • Publisher: Federation Nationale des Trav Publ & des Synd Aff

Subject/Index Terms

• TRT Terms: Consolidation; Embankments; Tamping
• Old TRIS Terms: Consolidation techniques; Dynamic consolidation
• Subject Areas: Construction; Railroads;

Filing Info

• Accession Number: 00046413
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 18 1976 12:00AM