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A screw pile and a method of pile driving a screw pile
A screw pile, comprising a hollow shaft 12, a first end (fig 1, 14) and a ground engaging second end 16, the screw pile arranged to be driven into the ground by rotation of the shaft, the shaft having an internal thread 20 formed along at least a portion of its internal wall. The internal thread may be located close to the ground engaging end 16 and is comprised of a protruding wall perpendicular to the axis of the shaft 24 and extending helically along the interior wall. The height of the protruding wall 24 may decrease towards the leading edge (fig 3, 26). The thread may extend for one or less rotations along the internal wall. The screw pile may also have a secondary internal thread and a number of external helical threads 18. The ground engaging end 16 may be provided with serrations, these could be in the form of blades or teeth.
A screw pile and a method of pile driving a screw pile
A screw pile, comprising a hollow shaft 12, a first end (fig 1, 14) and a ground engaging second end 16, the screw pile arranged to be driven into the ground by rotation of the shaft, the shaft having an internal thread 20 formed along at least a portion of its internal wall. The internal thread may be located close to the ground engaging end 16 and is comprised of a protruding wall perpendicular to the axis of the shaft 24 and extending helically along the interior wall. The height of the protruding wall 24 may decrease towards the leading edge (fig 3, 26). The thread may extend for one or less rotations along the internal wall. The screw pile may also have a secondary internal thread and a number of external helical threads 18. The ground engaging end 16 may be provided with serrations, these could be in the form of blades or teeth.
A screw pile and a method of pile driving a screw pile
BURDEN TREVOR C (author) / JEYACHANDHIRAN RAJAGOPAL (author)
2015-06-03
Patent
Electronic Resource
English
IPC:
E02D
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