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Rigid inclusions
Soil improvement by means of rigid inclusions (also called compaction grouting columns or grout injected columns) results in a flexible foundation system with controlled settlements. The inclusions are executed with a screw especially designed for lateral soil displacement and injection of grout or concrete with a low strength class. Compaction grouting is used to improve the soil mechanical characteristics of compressible soils and increase the stiffness of the soil mass. The columns control and reduce the largest settlements by transferring the vertical load of the upper structure to the underlying load bearing stratum in which the inclusions are installed.
Construction sequence
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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.
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