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Berliner wall
The Berliner wall is a temporary or permanent earth retention system with two basic components. One component, carrying the full earth pressure load and moment resistance, is the vertical so-called soldier pile. The piles support the lagging wall or horizontal sheeting that spans the distance between the vertical elements. Lagging is most commonly wood, but may also consist of steel sections or precast concrete. Berliner walls refer to the use of steel beams (H section profiles) and timber lagging.
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Construction sequence
Fields of application
• Very economical retaining wall (shoring) system in excavations
• Earth retaining wall, absence of groundwater over the retained height in the excavation area.
• Not water retaining (the wall is permeable)
• Excavations of limited area / confined spaces
Environmental impact
• Vibration and noise pollution
• A stable, dry and flat work platform is needed
• Not recommendable next to vibration-sensitive constructions (impact of vibrations) (cf. CSTC installation guidelines type 1 and type 2)
• Flexible system – if necessary, placement of anchors or additional shoring (strutting) to limit large displacements.