LOADING TESTS ON LONG PILES DRIVEN IN GRAVEL AND STIFF CLAY

ESSAIS DE CHARGEMENT DE PIEUX DE GRANDE LONGUEUR BATTUS DANS DE LA GRAVE ET DANS DE L'ARGILE RAIDE

Driven metal piles of great length are in common use on the harbour site in Le Havre. In most cases, they easily go through deep thick gravelly soil layers until they reach the subjacent clayey substratum which offers them driving resistance. Load bearing tests on such piles, 600 mm in diameter and fitted with a shoe, have shown the highly satisfactory bearing capacity of the gravel. The results agree with forecasts based on the pressiometer theory, contradicting the standard formulae for dynamic driving, which give very poor results. After loads have been applied on the piles through the gravelly layer, the piles are driven further until they reach the substratum, where the in-situ results obtained are also in agreement with theoretical assessments. These tests gave the opportunity of evaluating a dynamic calculation method developed by the society dumez. /TRRL/

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732

  Bulletin de Liaison des Lab des Ponts et Chaussees

  58 Boulevard Lefebvre
  75732 Paris,   France 
• Authors:
  • Combarieu, O
• Publication Date: 1976-3-4

Language

• French

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 34-40
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 82
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Bearing capacity; Bearing tests; Clay; Field tests; Foot; Friction; Gravel; Load tests; Loads; Marl; Metals; Pile driving; Piles (Supports); Soils; Tests
• Old TRIS Terms: Insitu methods
• ITRD Terms: 3085: Bearing capacity; 4177: Clay; 3641: Driving (pile); 5452: Friction; 4575: Gravel; 6226: In situ; 5567: Load; 4119: Marl; 4543: Metal; 3399: Pile; 6255: Test
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00152547
• Record Type: Publication
• Source Agency: Central Laboratory of Bridges & Highways, France
• Report/Paper Numbers: ANALYTIC
• Files: ITRD, TRIS
• Created Date: Jul 2 1977 12:00AM