Rotary drive machine for helical pile installation and method of use
OwnerTerry Paun, Rebecca Pauninventors
Life of this patent
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Abstract
A rotary drive machine for the installation of helical pile sections through installation openings in a slab floor inside of a building perimeter. A vertical frame having an upper end and an open lower end is positioned over an installation opening through which it is desired to rotationally install a helical pile section, and the vertical frame anchored to the slab floor. A rotary power means, attached to the helical pile section moves along a vertical movement guide and is driven by a vertical actuator to rotationally and vertically drive the helical section into the ground. A method of use is also disclosed.
Claims21
A rotary drive machine for the installation of helical piles from inside a perimeter of a building foundation having a slab floor therein, said machine comprising:
- a. a vertical frame having an upper end and an open lower end for positioning over an installation opening in the slab floor through which an installation section of ground in which it is desired to rotationally install at least one helical pile section is exposed;
- b. a rotary power means for the rotation and installation of the at least one helical pile section through the open lower end of the frame;
- c. a vertical movement guide slidably engaging the rotary power means, to allow for retention and guidance of the rotary power means therealong;
- d. a vertical actuator operatively attached to the rotary power means, capable of powered movement of the rotary power means along the vertical movement guide as desired;
- and
- at least one slab anchor for engaging and retaining the vertical frame and the lower end thereof in relation to the installation opening in the slab floor exposing the installation section of ground thereunder, at a desired operating position for the machine,
- wherein the at least one slab anchor comprises at least one detachable anchoring tab extendable from the open lower end of the frame to reach underneath the exterior perimeter of the installation opening in the slab floor, whereby the attachment of said at least one slab anchor will retain the machine in relation to the installation opening in the slab floor and permit downward pressure to be asserted on the rotary power means by the vertical actuator in operation of the machine.
A rotary drive machine for the installation of helical piles from inside a perimeter of a building foundation having a slab floor therein, said machine comprising:
- a. a vertical frame having an upper end and an open lower end for positioning over an installation opening in the slab floor through which an installation section of ground in which it is desired to rotationally install at least one helical pile section is exposed;
- b. a rotary power means for the rotation and installation of the at least one helical pile section through the open lower end of the frame;
- c. a vertical movement guide slidably engaging the rotary power means, to allow for retention and guidance of the rotary power means therealong;
- d. a vertical actuator operatively attached to the rotary power means, capable of powered movement of the rotary power means along the vertical movement guide as desired;
- and
- at least one slab anchor for engaging and retaining the vertical frame and the lower end thereof in relation to the installation opening in the slab floor exposing the installation section of ground thereunder, at a desired operating position for the machine,
- wherein an angle of the vertical movement guide is adjustable.
A method for installation of a helical pile from an interior of a building foundation having a slab floor therein with an installation opening in the slab floor exposing an installation area of the ground thereunder in close proximity to the desired installation location for the helical pile, said method using a rotary drive machine comprising:
- a. a vertical frame having an upper end and an open lower end for positioning over an installation section of ground in which it is desired to rotationally install at least one helical pile section;
- b. a rotary power means for the rotation and installation of a helical pile section through the open lower end of the frame;
- c. a vertical movement guide slidably engaging the rotary power means, to allow for retention and guidance of the rotary power means therealong;
- d. a vertical actuator operatively attached to the rotary power means, capable of powered movement of the rotary power means along the vertical movement guide as desired;
- and
- e. at least one slab anchor for engaging and retaining the vertical frame and the lower end thereof in relation to an installation opening in the slab exposing the installation section of ground,
- wherein the method comprises:
- i. manipulating the open bottom end of the frame and the position over top of the installation opening in the slab;
- ii. anchoring the machine to the outer perimeter of the installation opening using the at least one slab anchor;
- iii. positioning a helical pile section within the frame, engaging the point on the ground therebeneath at which it is desired to install the helical pile section;
- iv. attaching an upper end of the helical pile section to the rotary power means;
- v. actuating the rotary power means to rotate the helical pile section and screw it into the ground;
- vi. using the vertical actuator as required to drive the rotary power means and the helical pile section into the ground;
- and
- vii. once the helical pile section is completely rotationally installed into the ground beneath the slab, detaching the rotary power means therefrom.
Dependencies are inferred from the claim text.