Most breakwaters are built of big stones or large concrete boxes filled with sand and concrete. To build a harbor in Zueitina Libya, however, engineers used prestressed-concrete cylinder piles. The huge amounts of good-quality rock needed for the first alternative were unavailable in this northern part of Africa. Using boxes would have required building a shipyard or graving dock--too expensive. So using about 800 54-in. (137-cm)-diam. concrete piles was the cheapest alternative. Piles were driven by a ram-weight and high-pressure, high-volume water jets.

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00034786
  • Record Type: Publication
  • Source Agency: American Society of Civil Engineers
  • Files: TRIS
  • Created Date: Sep 29 1972 12:00AM