Dynamic replacement

Dynamic replacement2023-11-27T10:15:10+01:00

Enhancing Soil Stability with Dynamic Replacement Technique

Dynamic replacement is a ground improvement technique that reinforces fine grained soils with a network of dynamically pounded pillars.

Dynamic Replacement Soil Improvement | Menard Meca

Compaction or Dynamic Replacement?

If the ground cannot be dynamically compacted directly due to high fines content within the soil, a fill material must be added. The incorporation ratio is generally between 10 and 15%, and is higher than that of stone columns.

Dynamic replacement Implementation

The Dynamic replacement technique can be carried out with or without pre-excavation. Pounding and filling of the reinforcement pillars alternates accordingly during execution. The material incorporated is either placed over the whole treatment surface prior to pounding and pushed into the pillars during the project, or stored at a regular intervals around the worksite and directly incorporated in the pillars.

Dynamic replacement Advantages

The technique is particularly well suited to areas under high load (high backfill, storage tanks, etc.) and also allows for rapid drainage of the ground.

Contact us today to ensure the safe and reliable operation of your industrial plant and equipment. Our foundation solutions are tailored to your unique needs and soil conditions, providing cost-effective and durable results.

Dynamic Replacement FAQ

Is it necessary to pre-excavate pilars to carry out dynamic replacement?2023-03-09T09:50:57+01:00

No, because the initial pounding of the platform is generally sufficient to form the crater that initiates the dynamic replacement pillars. After filling this crater, pounding drives the “compacted plug” into the soil, which then serves as the basis for the formation of the rest of the pillar.

Can I use dynamic replacement in organic soils?2023-03-09T09:49:59+01:00

The large diameters (2 to 2.5 meters) and low slenderness ratio of dynamic replacement pillars make them suitable for treating very loose, waterlogged and highly organic soils. If need be, preloading can be carried out to reduce residual settlement.

CMC techniques for soil

Dynamic Replacement Projects

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