Brief Introduction

Socketed steel H-pile is installed by forming a prebored hole in ground with socket in the rock, placing a steel H section in the prebored hole and subsequently filling it with cement grout. The common size of prebored hole is 610mm. The loading capacity of socketed steel H-pile comes from the skin friction between the grout and rock.

The major machinery used for installation of socketed steel H-pile is rotary hydraulic boring rig. It is used to form prebored holes on the ground by drilling through the soil and the rock to form the required rock socket. The size of machinery used for socketed H-piling works is also smaller compared to those used for bored piles and occupies less space, which makes it suitable for foundation works at site with limited space. It also has the advantages of generating less noise and vibration, therefore causing less nuisance to the public.