RETRACTABLE VANE FOR STUDYING THE CONDITIONS OF COHENSIVE SOIL ROUND PILES

SCISSOMETRE RETRACTABLE POUR L'ETUDE DE L'ETAT DES SOLS COHERENTS AUTOUR

The authors recall that pile driving and drilling modify the mdeium in which the piles are driven or drilled. In the case of driven piles, the desnity of sand increases, but cohesive soil is distrubed. The same thing happens with drilled piles. It is necessary to control the state of the soil round the pile at several stages, as the degree of disturbance decreases with time. This operation is difficult to carry out from the surface. The simplest and safest method consists in taking direct measurements through the shaft of the pile, but this is not always possible. This article describes a type of vane developed for this purpose.

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Jezequel, J
  • Guegan, J
  • HERVE, G
• Publication Date: 1971-12

Language

• French

Media Info

• Features: Figures; Photos;
• Pagination: p. 17-19
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 56
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Cohesive soils; Drilling; Measurement; Mechanical vanes; Pile driving; Support piles; Vane shear tests
• Old TRIS Terms: Disturbances
• ITRD Terms: 4157: Cohesive soil; 5595: Deformation; 3871: Drilling; 3641: Driving (pile); 3377: Foundation; 3399: Pile; 5531: Shear; 4156: Soil; 5544: Strength (mater); 6255: Test; 6158: Vane; 6468: Volume
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00081147
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 8 1975 12:00AM