The design is being subject to independent review. So far 3 groups have looked at it and all have come up with reasonably similar designs. We have in-put from very experienced geotechnical engineers familiar with the site conditions as I am. We have allowed for changes in the soil parameters...
The sheet piles will probably be HZ king piles driven on shore to full depth about 33 down, sheet pile dead man anchors with tie rods at MSL installed and then excavation down 24 metres to form a dredged pocket for a shiplift. Very stiff clay from 12 metres down.
I am designing 25 metre high anchored sheet pile retaining walls. This high is well beyond the range that both the Australian AS 4678)and British BS8002)retaining wall design guidelines say they cover(up to 15 m).The walls are in a marine environment and are founded in very stiff clay. Any...