HELICAL SCREW PILE

摘要

A helical screw pile includes a longitudinal shaft having a top end and a bottom end with a plurality of helical plates arranged on the shaft in increasing diameter from the top to the bottom. The largest diameter helical plate is located toward the bottom of the shaft. A second helical plate having a diameter smaller than that of the first plate is located above the first helical plate. A smaller third helical plate is located above the second helical plate so that the smallest is located toward the top of the shaft. The helical plates can be spaced apart along the shaft or coupled together in an end-to-end manner to form a continuous helix.

主权项

1. A helical screw pile for penetrating the ground and forming a support, the screw pile comprising:
a longitudinal shaft having a top end and a bottom end for engaging the ground; a plurality of helical plates arranged on said longitudinal shaft in decreasing diameter from the bottom end to the top end, a first of said plurality of helical plates being disposed toward the bottom of said shaft and having a first diameter; and a second of said plurality of helical plates having a second diameter that is smaller than said first diameter, said first of said plurality of helical plates having a trailing edge abutting leading edge of said second of said helical plates.