DGI-Menard partners with clients and their engineers to evaluate conditions and provide ground improvement design/construct services with guaranteed performance.
DGI-Menard offers a full range of ground improvement technologies including:
These ground improvement technologies essentially involve two different approaches: improvement with or without additional material.
Ground Improvement without additional material:
For granular soils (sand, gravel), densification is primarily achieved by means of vibration. For cohesive soils
(clay, silt), consolidation by pre-loading (constructing an embankment surcharge or applying a vacuum) can be significantly
accelerated through the use of a drainage system.
Ground Improvement with additional materials:
These techniques consist of making flexible, rigid or semi-rigid vertical inclusions (columns) in compressible soil layers.
These inclusions are laid out following a regular surface grid. The inclusion material is either dry and cohesionless
(stone columns and dynamic replacement pillars) or grout based products (controlled modulus columns and vibro-concrete columns).
The resulting consolidated soil layer behaves like a composite material with improved characteristics.
The following diagram indicates the selection of ground improvement technology based on soil type and the depth of the compressible ground.
