Abstract: A method of constructing a stabilised earth structure under water comprises lowering a row of base units on to a site under water, lowering into a position immediately above said base units facing units to which are attached in a row elongate flexible reinforcements for stabilising the earth, the facing units being guided during lowering by rigid guide members connected to the base units, and backfilling the base and facing units with earth to cover the reinforcements. Each base unit comprises an elongate box and fluid concrete is introduced into the elongate box and allowed to harden to support the respective facing unit with its lower edge horizontal even if the base unit rests on a slope. Each guide member is connected to a respective elongate box so as to be adjustable to a vertical orientation.

Abstract: A rolled metal strip for use in stabilized earth structures has at periodic intervals along its length thickened reinforcement regions formed during the rolling operation. The strip is cut into required lengths such that each strip length has an end reinforced region through which an aperture is then formed to receive a bolt passing through a bracket of a facing. The strip may include transverse ribs at intervals on both faces of the strip to assist engagement with the surrounding soil.

Abstract: The invention relates to a precast concrete traffic barrier element and a method of construction for a traffic barrier using the element on a vertical face of a retaining wall. The barrier element is a profiled block of precast concrete having a bottom surface with a longitudinally extending channel therein. The traffic barrier element is supported on the retaining wall with a top surface of the vertical face being received within the channel. Anchoring bars projecting from an interior portion of the traffic barrier element are embedded in a cast in situ counterweight positioned adjacent to the barrier. In a preferred embodiment, a plurality of traffic barrier elements are anchored in a single counterweight.