Back to results
US 6,652,195 B2Granted
Method and apparatus for forming piles in place
AssigneeVickars Developments Co. Ltd.
InventorsRobert Alfred Vickars, Jeremiah Charles Tilney Vickars, Gary Matheus Toebosch
Life of this patent
Estimating the term…
Abstract
A screw pier has an elongated shaft with a screw adjacent one end thereof. Soil displacing members are disposed on the shaft. The soil displacing members may be drawn through soil by turning the screw. A soil displacing member closer to the screw may be smaller than one or more soil displacing members farther from the screw. A driving tool may be provided for turning the screw.
Claims15
A method for forming a pile, the method comprising:
- providing a screw pier comprising a shaft having a screw proximate a first end thereof, a first soil displacing member projecting on the shaft at a location spaced toward a second end of the shaft from the screw and a cylindrical member extending from the first soil displacing member away from the screw;
- placing the screw in soil and turning the shaft to move the screw through the soil thereby causing the screw to pull the first soil displacing member through the soil, thereby clearing soil from a cylindrical region surrounding the shaft;
- either during or after clearing the cylindrical region, filling the cylindrical region with a fluid grout;
- and,
- allowing the fluid grout to solidify, thereby encasing the shaft.
2 more elements
A method for forming a pile, the method comprising:
- providing a screw pier comprising a shaft having a screw proximate a first end thereof, a first soil displacing member projecting on the shaft at a location spaced toward a second end of the shaft from the screw with the first soil displacing member comprising a flange projecting radially outwardly from the shaft, and a cylindrical member extending from the first soil displacing member away from the screw, the cylindrical member comprising a tubular member and the shaft passing coaxially through a bore of the tubular member;
- placing the screw in soil and turning the shaft to move the screw through the soil thereby causing the screw to pull the first soil displacing member through the soil, thereby clearing soil from a cylindrical region surrounding the shaft;
- either during or after clearing the cylindrical region, filling the cylindrical region with a fluid grout;
- and
- allowing the fluid grout to solidify, thereby encasing the shaft.
2 more elements
A screw pier for making a grout encased pile, the screw pier comprising:
- an elongated shaft having first and second ends;
- a screw adjacent the first end of the shaft;
- a plurality of soil displacing members at spaced apart locations along the shaft, a first one of the soil displacing members located near the screw and having a diameter smaller than a diameter of the screw;
- and,
- a cylindrical member extending from the first one of the soil displacing members in a direction away from the screw.
2 more elements
Dependencies are inferred from the claim text.