Design and Testing of Piles on a Telecommunications Project in Morocco

Site investigation, geotechnical analyses, and pile testing were performed in 1990-91 for the design of pile foundation for towers and anchors on a telecommunications project in Morocco. The soil profile consisted of estuarian and lagoonal deposits with a normally-consolidated clay deposit overlying overconsolidated clay (hard basal clay). An estuarine sand deposit of variable thickness and density is located between the clay and basal clay, in places sandwiched within the clay. Consolidation properties of the clay were back-calculated from the records of settlement under an extensive berm constructed earlier at the site. Analyses of pile compression and uplift capacity were performed by several methods. Calculations were also made of deflections and bending moments induced in inclined piles by continuing ground settlement. In most cases, the piles achieved the required tension and compression capacity in the sand and basal clay. However, attention needed to be paid to areas where the sand was relatively thin and underlain by clay. Test piles driven to the calculated depths were tested in compression and tension. The results of the pile testing programme indicated that pile analysis methods employed at the time provided a reliable prediction of the actual pile capacities, even under fairly complex soil conditions.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 452-470
  • Monograph Title: Full-Scale Testing and Foundation Design: Honoring Bengt H. Fellenius

Subject/Index Terms

Filing Info

  • Accession Number: 01529952
  • Record Type: Publication
  • ISBN: 9780784412084
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 2:02PM