Selected Technique:
Dynamic Compaction

Treatment Area:

11,106 m²

Maximum Depth:

6 m

After having carried out the improvement of the soils by Dynamic Compaction with blocks of sand under the foundations and under the slabs on the ground as part of the construction of the factory in 2015, the expansion of the freezer portion in 2017, another phase in 2020 for two new production lines at its factory, a phase of expansion of the freezer – storage portion in 2021 and an expansion in September 2022. Menard Canada proposed the same process for this new expansion of a surface area of 11,106 m2 in order to improve the silty/clayey nature of the soils.

Ground Conditions

In the absence of geotechnical drilling on the 2023 and subsequent work portion, Menard Canada carried out a total of six Cone Penetration Tests (CPT) drillings in the subsequent expansion portion and one investigative drilling in the 2023 expansion portion in order to verify that the soil profile did not differ from the other phases. The soil profiles were as follows:

Compact sand with a little silt up to approximately 2.5 m deep;

• A silt containing a little clay, with a little sand to silty, very loose, up to depths varying from 4 to 5.5 m
• Compact sand with some silt until the end of drilling between 5.50m and 8.50m depth.
• The water table was discovered at a depth of 5.5m.p

Ground Improvement Being Conducted, in Plessisville, Quebec