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Densification of granular material (compaction) is often required in areas subject to vibrations such as earthquake loading or traffic movement. Compaction is executed during the construction phase of a project to avoid post construction settlements or liquefaction (the loss of strength of the granular material) during for example an earthquake. It improves the load-settlement behavior of the material, making it suitable to reduce foundation settlements of structures. 

All compaction methods make use of the same principle: introducing high local vibrations into the soil body. These high vibrations densify the granular material when larger than the interparticle resistance. As the vibration energy reduces with the distance to the vibration source, the effect of compaction is bound to physical limits depending on various parameters. In order to have a solution for each case, Cofra has three compaction techniques within its portfolio. Find out more by using the links in the overview below. 

Website Diagram Compaction Wide
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Our solutions

Cofra has the following compaction solutions within it's portfolio

CDC compaction for the movement of 13500 Ton bridge

A selection of our compaction projects

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CDC compaction for the Wasl Island development

Our Cofra Middle East crews compacted in 2022, 17,500m2 to create a new hotel resort on reclaimed land.


CDC compaction for Masdar Road

Our Cofra Middle East crews compacted in 2020, 32,000m2 to create a new road.

CDC compaction for Al Hudayriat Island

For main contractor NMDC, we are compacting the new artificial hills on the Island with a 16 ton Rapid impact hammer

CRC and CDC compaction for Dubai Waste center

A total of 182.000m2 was compacted in 2022 for the future Waste treatment center in Dubai

CDC compaction for Al Dhafra airbase

For an expansion on the Al Dafra airbase we have compacted in 2022, 700.000 m2 of area

CDC compaction for Jafourah Gas Plant

We provided two 16 ton CDC rigs between 2022 and 2023 for the site preparation of the Jafourah Gas plant in KSA