A Highly Efficient Approach for Improving Challenging Soils 

Dynamic Compaction is a simple, yet highly effective ground improvement technique used to densify a wide variety of soils in place. 

  • Very cost-effective 
  • Increased load-bearing capacity 
  • Rapid installation: shorter project timelines 
  • No excess soil generated 
  • Low carbon, zero spoil approach 

  • Granular soils
  • Sandy soils
  • Undocumented fill soils
  • Treat soils up to 12m deep 
  • Bearing pressure of up to 300 kPa SLS 
  • Pillar/trench size adjustable to requirements

The fundamental approach to this technique is that the transmission of very high energy waves moves through the compressible soil layer to improve its geotechnical properties at depth, causing significant densification to occur. The process begins with a test plot area of what specific grid spacing will be needed for the project and how much impact energy will be required to achieve the right amount of Compaction for the project. For example, the total weight, shape of the pounder, and drop height are critical items to be predetermined. Next, two different types of pounding stages happen. In the first stage, deep layers are compacted across the grid, and in the second stage, intermediate layers are pounded. After completion of the first two stages, the surface Compaction (sometimes called ironing) is carried out over the entire improved area.

How it Works

Invented by Louis Menard, the Dynamic Compaction ground improvement technique utilizes a crane that drops a heavy pounder weight to fall freely from a predetermined height depending on the density required for the project. Impact shockwaves occur when the pounder hits the ground below, transmitting the impact waves well below the surface to significantly densify the granular soils below. Dynamic Compaction is effective in both unsaturated soils and saturated soils below the water table. 


Our Promise of Quality Assurance

Menard Canada’s ground improvement proposals always have straightforward pricing, so you will never have to worry about any unexpected project extras. The cost that we quote you on is your project’s cost; it’s that simple. Furthermore, we will always work to meet and exceed all your project expectations by performing tasks using the most thorough quality control measures possible to ensure a positive project outcome for your project; this is our promise to you. 

We invite you to review our testimonials below and see what makes Menard Canada different.