Screw injection anchors are thick-walled tubular anchoring elements that can transfer tensile and compressive forces to the subsoil. On the far end, screw injection anchors have a auger type tip for installation at depth using a special drilling rig. Grout is injected under pressure through the lance just behind the tip, along the length of the anchoring body. The auger mixes the grout with the soil to create a mass that helps the anchor to embed in the surrounding soil. The anchor body has the same diameter as the auger selected, varying between 150 and 400 mm. Screw injection anchors for permanent structures can be partially fitted with corrosion protection.
Screw injection anchors are used in all kinds of soil- or water-retaining structures, such as: - construction pit walls, fencing, quay walls, high-voltage pylons, swimming pools, cellars, underwater concrete floors.
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Name of Project |
Client |
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Muiden, Construction pit Aquaduct motorway A1-A6 |
Construction consortium SAAone |
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Gouda, 2nd Juliana lock |
Van Hattum en Blankevoort |
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Bergambacht, Embankment reinforcement Bergambacht-Ammerstol-Schoonhoven |
Waterauthority Schieland - Krimpenerwaard |
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Berlicum, Building pit lock Berlicum Zuid-Willemsvaart, |
Construction consortium Willemsunie |
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Rotterdam Maasvlakte, Quay wall EMO |
Port of Rotterdam |
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Breukelen, Widening highway A2 |
Van Hattum en Blankevoort |
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Lekkerkerk, Riverbank reinforcement Nederlek |
Waterauthority Schieland - Krimpenerwaard |