Pomerleau contacted Menard Canada to improve the soil to a depth of +- 8m, located under the future National Center for Verification and Recovery, a 4-storey building located in Shawinigan, Quebec.
The geotechnical data extracted from the drilling reports indicated that throughout the site, the following soil profile was identified:
- A natural granular horizon composed of sand with traces of Silt to a depth of between 6.5 and 7.2m from the level of the natural terrain.
- A deposit of Silt to a depth of + 9m compared to the level of the natural ground.
- A varved deposit (mixture of Silt and Sand with clay strata) to a depth of + 22m compared to the level of the natural terrain.
- A clayey deposit beyond depths of approximately 50m according to the Cone Penetration Tests (CPTs carried out in the geotechnical study.