Drilled micropiles are piles with diameters of up to 300mm. They are constructed by installing reinforcement bars or casings and grouting them. It’s a cost-effective technique.
Presentation and key elements
What is it?
Drilled micropiles are piles with diameters of up to 300 mm. They are constructed by installing reinforcement bars, cages, and occasionally structural casing. The structural elements are then grouted.
When and why use it?
Micropiling is most commonly utilised as a direct structural underpinning to support existing structures or tying down ground slabs against uplift forces. This cost-effective technique is often employed when space constraints do not allow the utilisation of conventional piling equipment.
💡 Menard’s tip
Micropiles can also be installed in closely spaced groups or grids as an alternative to conventional piling schemes on remote sites or under bridge abutments.
