![]() Instead of using the traditional rock armour for the breakwaters, which would require individual armour rocks of up to 40 tonnes and be particularly vulnerable to damage during construction, a new type of artificial concrete armour units called Cubipods were selected as a more robust alternative.Ī Cubipod is a large bulky concrete block resembling a cube with pods sticking out on each side. We were also focussed on durability, constructability, and minimising the risk for the contractor during construction, as summer storms with maximum wave heights up to 6-8 m were inevitable during the breakwater construction from April to September.” exposed to severe wave conditions ![]() “Our aim was to develop a breakwater design that could sustain 100-year design wave conditions. “Hanstholm is by far the most exposed port in Denmark, making the new western breakwater the largest and most challenging breakwater built in the country since the present port was built in the 1960s,” explained Thomas Gierlevsen. To protect the new port basin and quay wall from wave heights of up to approximately 14-15 m, COWI, in close collaboration with client and contractor Aarsleff A/S, has designed a 1 km long eastern breakwater and 400 m long western breakwater. The Port of Hanstholm is currently undergoing a major 500 million DKK design-build expansion, which includes constructing new outer breakwaters, a new and deeper harbour entrance, new and larger quays, and hinterland. ![]() A new artificial concrete armour technology has been selected as part of the solution. Carbon capture utilisation & storage (CCUS)ĭesigning a breakwater to protect a vulnerable coastal environment susceptible to destructive storms off the North Sea is not an easy task.
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