Brief Introduction

Mini pile is similar to socketed steel H-pile, but smaller in size. Mini-piles generally have a diameter of not exceeding 400mm. A mini-pile is installed by forming a prebored hole in ground with socket in the rock, placing the reinforcement bars in the prebored hole and subsequently filling with cement grout.

The major machinery for installation of mini-piles is hydraulic boring rig, which is smaller than those used for socketed steel H-piles. Because the size of the machinery for mini-pile construction is the smallest among all pile types, mini-piles are suitable for sites with small area or difficult access. This type of piles also has the advantages of generating less noise and vibration, therefore causing less nuisance to the public.