Sheet pile wall

A sheet-pile wall is a retaining quay built from interlocking steel or concrete sheet piles driven into the seabed, with the option of tie-rods to an anchor wall or deadman for taller retained heights. A cantilever sheet-pile wall relies on toe embedment alone; an anchored sheet-pile wall adds a tie at cope level to cut bending and deflection. Combi-walls pair tubular king piles with intermediate sheets for deeper berths and higher loads. Design to BS 6349-2 checks bending, toe stability, and anchor force under active earth pressure plus surcharge, fender, and bollard loads, with section and embedment governing rather than dead weight. Submerged steel needs cathodic protection and sacrificial corrosion allowance.