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Rigid inclusions
Construction sequence
1. Placement of the screw head. A lost closing nut tip, located under the screw prevents any penetration of water and / or soil during screwing-in. .
2. The especially designed auger, powered by a hydraulic rotary table with large torque capacity and static down thrust, displaces the soil laterally during the screwing-in phase.
3. Vibration-free screwing-in of the screw with its displacement body up to the requested design depth.
4. During the extraction phase of the auger, grout or concrete with a lower strength class is pumped under controlled pressure through the hollow, central tube into the borehole.
5. Completed rigid inclusion, illustrated with an enlarged head.
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Fields of application
• Well adapted to high uniform surface loading with strict settlement requirements (e.g. industrial warehouses, infrastructure projects such as road and railway embankments, etc…).
• Total solutions can be developed in consultation with the research department.
Environmental impact
• Vibration-free execution
• Low noise pollution
• Virtually no extraction of soil after the installation of the rigid inclusions, therefore limited removal of spoil resulting in a cleaner working area
• A stable, dry and flat work platform is required.
Technical specifications
• An enlarged head may optionally be realised to improve distribution of the load of the upper structure towards the rigid inclusion
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