Dolos protect sea wall from storm damage

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They are used to protect harbour walls, breakwaters, and shore earthworks. They are also used to bind sea-sand to prevent erosion. In the order of 10 000 dolosse are required for a kilometre of coastline. They work by dissipating, rather than blocking, the energy of waves. Their design deflects most wave action energy to the side, making them more difficult to dislodge than objects of a similar weight presenting a flat surface. Though they are placed into position on top of each other by cranes, over time, they tend to get further entangled as the waves shift them. Their design ensures that they form an interlocking, but porous, wall. They are often numbered so that satellites can track their movement. This helps engineers gauge whether they need to add more dolosse to the pile. credit:

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Size: 3872px × 2592px
Location: Lamberts Bay South Africa
Photo credit: © Geof Kirby / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: concrete, dolos, dolosse, energy, interlocking, protection, puzzle, sea, storm, structure, wave