The following soil profile was identified in the boreholes:

• The following soil profile was identified in the boreholes:
• Compact sand with some silt up to about 2.5 m deep;
• A silt containing traces of clay, with some silty sand, very loose, down to depths varying from 4 to 5.5 m;
• Compact sand with some silt until the end of the drilling between 5.50m and 8.50m deep.

The water table was found at a 5.5m depth.

Menard Canada Solution

After the soils were removed and replaced with MG112 sand in line with the foundations and along a grid under the slab. Dynamic Compaction was carried out using a conventional high-energy 4-stage crane. The drop height had been adjusted throughout the process as it was quite close to the existing building. Control tests such as the Cone Penetration Test (CPT) made it possible to verify that the required bearing capacity of 150 kPa for the foundations and 25 kPa for the slab as well as maximum settlements of 25mm were met.