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Geotechnics

in the field of geotextiles, geogrids, geocomposites and liners. Cofra is the specialized contracting company, mainly operating in the field of ground improvement. Besides ground improvement Cofra also focusses in specific markets on the installation of barriers, often involving (environmentally

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Infrastructure

Infrastructure Ground improvement for the line infra market often involves the treatment of the subsoil before the construction of the embankments..., strength of the subsoil and residual settlement requirements. Ground improvement works for large sites, like for example airport, can be performed as part... of the embankment often governs the need and extend of the ground improvement. Consolidation techniques like vertical drains, together with a preload

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Mining

Mining Ground improvement for oil & gas and mining projects have various application areas. Ground improvement can be performed for tank farm foundations, but also for complete refineries and extraction locations. For the mining industry the application areas are mainly focused on the treatment... of loose sands. The consolidation techniques are often used as an integral ground improvement solution, treating the complete construction site when

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Elements

water pressure by means of our consolidation techniques, so called elements are often used as ground improvement solution. All element solutions have

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Reclamation

ground could require improvement. In the case of compressible materials in the natural soil our consolidation or element techniques help to accelerate... if ground improvement is required to improve the engineering properties of the materials. We are experts in finding the most optimal and economical

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Cofra Stone Columns

Cofra Stone Columns Stone columns are widely used as ground improvement method for unsuitable soils to improve its bearing capacity and limit... of liquefaction in silty soils The following soil types are suitable for stone columns: Total package Cofra has multiple ground improvement solutions... are installed using vibratory flots mounted to hydraulic excavators. The flot is inserted into the ground till design depth using water and air jets

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