Minipiles (also knowed as micropiles) enable the implementation of foundations for new structures or the reinforcement of old structures in confined spaces.
This method consists of transferring the loads from the structure to the soil by sinking a small pile (diameter under 250 mm) generally fitted with a metal insert (ribbed blocking bar, tube).
Minipiles can be used for working in compression, traction or a combination of both.
- Foundations of new structures
- Reinforcement of existing structures: bridge abutments, slopes, road embankments
- Anchoring of rafts against upward pressure
- Anchoring of pylons (power, radio, telephone)
- Reinforcement of existing foundations or underpinning of buildings
- Drilling with air, water or stabilized cement-bentonite grout
- Substitution grout (sleeve) in pure cement
- Installation of reinforcement
- gravity filling with grouting slurry: type II minipiles
- global one-shot grouting: type III minipiles
- repetitive and selective grouting: type IV minipiles
- Construction of the capping beam