Interlocking steel sheets are driven or pressed into the ground to form a continuous earth-retaining barrier. They can provide useful water resistance, though seepage and groundwater conditions must be considered for each site.
Sheets can be designed as cantilever walls relying on embedment or with additional support such as anchors or props. Ground, water, excavation depth and loading determine the appropriate section, embedment and installation method. See DAACE’s M5 Junction 9 and Loaning Meadows projects for sheet-piling examples.
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