Project Description
Compaction grouting is a ground improvement technique that densifies the soil by grouting under pressure a network of inclusions.

Presentation and key elements
What is compaction grouting and why do we use it?
Compaction grouting is a ground improvement technique. It is used to stabilize and densify compressible soils, and for liquefaction mitigation. Compaction grouting can also be used as vertical reinforcement elements similar to rigid inclusions.
Basic principle of compaction grouting
The use of a mortar or concrete laterally compacts the soil without vibrations.
Execution of compaction grouting
The treatment involves the injection of a mortar, generally with high viscosity, under pressure and at a controlled flow rate, which displaces the soil around the drilling tool and subsequently compacts it. Compaction ratios for this technique can be quite high and are generally in the range of 6-10%.

Compaction grouting is a quasi-static process with controlled pressure and injection rates. There is therefore no risk of increasing pore water pressure nor generating post-construction settlement.
Our projects
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Construction of a tertiary and logistics business park in Trélazé, France
- Decontamination of the « Stade de France » in Saint-Denis, Francecoralielaval2022-04-21T12:43:30+02:00
Decontamination of the « Stade de France » in Saint-Denis, France
- NASA Glenn Research Center Cleveland, OHcoralielaval2022-04-05T17:09:30+02:00
NASA Glenn Research Center Cleveland, OH
- Alexandria port’s multi-purpose terminal, Egyptcoralielaval2022-04-05T17:01:01+02:00
Alexandria port’s multi-purpose terminal, Egypt
- Joannes Couvert quay, port of Le Havre – FranceMarie Brunel2022-04-05T17:10:54+02:00
Joannes Couvert quay, port of Le Havre – France
- Infrastructural upgrade, Dunkettle, Irelandcoralielaval2022-04-05T17:25:49+02:00
Infrastructural upgrade, Dunkettle, Ireland
- E20 Warehouse area, Solrød Strand, DenmarkSophie Fromion2022-04-05T17:27:17+02:00
E20 Warehouse area, Solrød Strand, Denmark
- International Airport in Jakarta, IndonesiaMarie Brunel2022-04-05T17:24:51+02:00
International Airport in Jakarta, Indonesia
- Electrified Double Track Gemas-Bahru Rail project, MalaysiaMarie Brunel2022-04-05T17:24:09+02:00
Electrified Double Track Gemas-Bahru Rail project, Malaysia
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Siemens plant for offshore wind turbines, Germany
- LNG Terminal in Fos-Sur-Mer, FranceSophie Fromion2022-04-06T12:52:00+02:00
LNG Terminal in Fos-Sur-Mer, France
- Bretagne-Pays de Loire High-Speed Line, FranceSophie Fromion2022-04-06T12:59:33+02:00
Bretagne-Pays de Loire High-Speed Line, France
- UMW Aerospace Serendah Factory, MalaysiaSophie Fromion2022-04-06T13:10:41+02:00
UMW Aerospace Serendah Factory, Malaysia
- Windmills, Lautsitz Ring, GermanySophie Fromion2022-04-05T16:54:46+02:00
Windmills, Lautsitz Ring, Germany
- Aubagne LRT maintenance center, FranceSophie Fromion2022-04-06T13:18:02+02:00
Aubagne LRT maintenance center, France
- Spaceship Ariane 5 launch pad in Kourou, French Guyanacoralielaval2021-12-22T10:35:22+01:00
Spaceship Ariane 5 launch pad in Kourou, French Guyana
- Palm Jumeirah and Jebel Ali, Dubaicoralielaval2021-07-01T14:49:57+02:00
Palm Jumeirah and Jebel Ali, Dubai
- New container terminal in the port of Charleston, USAcoralielaval2021-07-01T14:53:05+02:00
New container terminal in the port of Charleston, USA
- Sihanoukville Airport, Cambodiacoralielaval2021-07-01T11:39:39+02:00
Sihanoukville Airport, Cambodia
- South Ring Road in Gdańsk, PolandSophie Fromion2021-07-01T11:38:04+02:00
South Ring Road in Gdańsk, Poland
- Modernisation of the Serqueux-Gisors railway line, FranceMarie Brunel2022-04-11T14:52:29+02:00
Modernisation of the Serqueux-Gisors railway line, France