Dolos (hydraulic engineering)
A Dolos (also Doloss , plural Dolosse , Afrikaans for talus ) is an odd-shaped concrete block with about 30 tons in weight, which, like tetrapods or Quadripoden etc. as a breakwater for the coastal protection is used. It is similar to the letter H , in which the right half is spatially rotated 90 ° around the axis of the horizontal line. This precast concrete part was developed in 1963 in East London, South Africa, for a port project under the direction of port engineer Eric Merrifield . The idea for the shape is attributed to Aubrey Kruger, although Merrifield received an award for it from the South African Bureau of Standards in 1972 , which was then called The Shell Prize Award .
Projects
At the end of May 2005, the major Coega project in South Africa was completed as planned. Since the start of the project, a total of 26,500 Dolosse has been produced in the field factory and 795,000 tons of concrete have been processed.
Web links
- The Dolos - a precast concrete part makes a career in coastal protection (PDF; 228 kB), BFT International 6/2004
- Selection of reinforcement bodies made of concrete. (PDF; 4.9 MB)
Individual evidence
- ^ RootsWeb: Merrifield, Kruger and the Dolos. February 23, 2003, accessed August 15, 2015 .
- ↑ Dolos Breakwater and Foreshore Protection Block. (No longer available online.) SABS, 2012, archived from the original on March 4, 2016 ; accessed on August 15, 2015 .