PILE DRIVING NEAR STONE RETAINING WALLS - RESULTS OF STEREOPHOTOGRAMMETRIC FIELD MEASUREMENTS

DEFORMATIONSMAETNINGAR VID SLAGNING AV PAALAR NAERA EN STENMUR - RESULTAT AV STEREOFOTOGRAMMETRISKA MAETNINGAR

The pile driving was carried out 12 M or more behind A retaining wall facing a small river. The soil beneath A 2-3 M thick fill consisted of about 9 M clay and medium dense sand down to at least 40 M depth. Close to the wall the soil had been replaced by sand. Precast concrete piles of an average length of 30 M were driven through the clay layer into the sand. Clay plugs were removed for the first driven piles. Two inclinometers and a settlement pipe were installed about 2.5 M behind the wall. The displacement of the individual stones in the masonry wall was determined by the use of stereo techniques. The results from two basically different cameras were compared. The measurements indicate that the clay plug extraction effectively reduced the lateral displacement of the soil. Surprisingly enough the wall as well as the inclinometers moved towards the piles during the piling. This can be explained by the relative thinness of the cohesive soil layer. That means that the settlements in the thick sand layer had a greater effect on the retaining wall than the lateral displacement of the soil. /TRRL/

• Corporate Authors:

  Swedish Geotechnical Institute

  Fack
  S-581 01 Linkoping 1,   Sweden 
• Authors:
  • Massarsch, K R
  • Ivmark, G
• Publication Date: 0

Language

• Swedish

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 47 p.

Subject/Index Terms

• TRT Terms: Angularity; Deformation; Field tests; Ground settlement; Inclinometers; Location; Measurement; Measuring instruments; Photogrammetry; Pile driving; Piles (Supports); Precast concrete; Retaining walls; Sand; Soil mechanics; Soils; Walls
• Uncontrolled Terms: Angles; Field measurements; Vicinity
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00142491
• Record Type: Publication
• Source Agency: Swedish National Road and Traffic Research Institute
• Report/Paper Numbers: Report 49 Monograph
• Files: ITRD, TRIS
• Created Date: Jul 19 1977 12:00AM