EARTHWORKS - DRAINAGE - SUBGRADE. REPORT FROM PORTUGAL --PIARC XVIII WORLD ROAD CONGRESS, BRUSSELS, BELGIUM, SEPTEMBER 13-19, 1987

Research in Portugal was carried out on: site investigation and the successful application of the electric resistivity method for detecting underground cavities at an airport in the azores; the use of unstable materials (shales, pumice stone and rock fills) in embankment construction; use of geotextiles in the widening and repair of embankments; slope protection and limitations of the use of blasting in excavation operations. The design and construction of drainage systems was also investigated together with inspection and repair techniques. A study was made of the design of capping layers in the subgrade and assessment of their bearing capacity. For the covering abstracts of the congress see IRRD 812115 and 812116.

• Corporate Authors:

  Permanent International Assoc of Road Congresses

  27 rue Guenegaud
  Paris,   France 
• Authors:
  • BRANCO, FEF
• Publication Date: 0

Language

• English

Media Info

• Pagination: p. 87-104
• Serial:
  • Publication of: PERMANENT INTERNATIONAL ASSOCIATION OF ROAD CONGRE
  • Issue Number: 0
  • Publisher: Permanent International Assoc of Road Congresses

Subject/Index Terms

• TRT Terms: Conferences; Detection and identification; Detectors; Drainage; Embankments; Geotextiles; Presplitting (Blasting); Pumice; Resistance (Electricity); Shale; Slope stability; Subgrade (Pavements)
• Uncontrolled Terms: Cavities; Site investigation
• Geographic Terms: Portugal
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00481214
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 30 1989 12:00AM