Mumbles Marina
As part of the redevelopment of the Mumbles Marina, a car park and boat launching slipway were required alongside the existing coastal road. The foundation had to be laid and the first row of panels installed during periods of low tide. At high tide the sea level can rise to 1m below the final level of the wall and so up to 9m of wall height could be submerged twice every day. The wall rests on a bed of drainage material, the footing for the wall panels was prefabricated in sections and secured to the lower panels, thus avoiding the need to pour concrete on site. After construction in the tidal zone was completed, erection proceeded quickly, as on a land based project. The base of the structure is protected against erosion by a stone embankment 1.5m thick. Reinforced Earth is a proven and effective construction technique which can offer cost savings and rapid construction when applied to marine structures.
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