Micropiles are small diameter grouted piles (typically less than 300 mm in diameter) transferring compressive, tensile or alternating loads into the surrounding ground. Dependent on the ground conditions, Self Drilling Micropiles are designed either as end-bearing or friction piles.
Self Drilling Micropiles are typically installed via simultaneous drilling and grouting using cement grout as the flushing medium. Particularly in cohesionless or unstable ground conditions e.g. sand, clay or gravel, this is the fastest and most efficient installation method for micropile systems.