Abstract:
A helical pile including a heat exchanger is described. The pile is formed from a lead section and one or more extension sections. The interior of the lead and extension sections are hollow and form a heat exchanger cavity. At the lower end of the lead section is a helical blade. Rotation of the lead section causes the helical blade to screw into the ground, thus pulling the lead section downward. Extension sections are added to the lead section and the pile is rotated until it is installed to a desired depth. The pile includes an inflow tube extending a predetermined distance into the heat exchanger cavity and an outflow port connected with the heat exchanger cavity. In operation, a heat carrying fluid is pumped into the inflow tube from a heat source or sink, for example, a heat pump for a building heating and cooling system. The fluid exits the tube at a point near the bottom of the heat exchanger cavity. The fluid flows upward through the heat exchange cavity and exchanges heat with the surrounding soil. The fluid flows out through the outflow port and back to the heat source or sink.
Abstract:
A helical screw pile having a soil displacement device (lead displacement plate) on its shaft above at least one helical plate, which pulls the pile into the ground when the shaft is rotated. The lead displacement plate has a disk that carries at least two curved, axially extending bottom blades, which preferably extend beyond the disk periphery. The axial height of the blades preferably is greater than the axial pitch of the helical plate(s) divided by the number of blades. The top of the disk has an axially extending adapter ring that defines an annular seat for centering a tubular casing. Extension displacement plates can be used between extension shafts for centering additional tubular casings.
Abstract:
The present disclosure provides helical ground anchors or piles designed to cut through rock. The helical ground anchors have a shaft, one or more helical plates attached to the shaft and at least one cutting tip attached to the distal end of the shaft in order to make a first cut through rock along the axis of rotation of the shaft. The distal end of the shaft is tapered and the at least one cutting tip can be attached to the longer end of the shaft. The helical shaped plates are attached to the shaft at a distance above the at least one cutting tip.
Abstract:
The present disclosure provides helical ground anchors or piles designed to cut through rock. The helical ground anchors have a shaft, one or more helical plates attached to the shaft and at least one cutting tip attached to the distal end of the shaft in order to make a first cut through rock along the axis of rotation of the shaft. The distal end of the shaft is tapered and the at least one cutting tip can be attached to the longer end of the shaft. The helical shaped plates are attached to the shaft at a distance above the at least one cutting tip.
Abstract:
The present disclosure provides a load bearing clamp including a first clamp member, the first clamp member including a first semi-annular clamping surface, a second clamp member, the second clamp member including a second semi-annular clamping surface, the second semi-annular clamping surface opposing the first semi-annular clamping surface and at least one member for drawing the first clamp member and the second clamp member toward each other, wherein at least one of the first semi-annular clamp surface and the second semi-annular clamp surface includes at least one irregular surface that deforms at least a portion of a shaft clamped between the first and second clamp members.
Abstract:
The present disclosure provides a lateral support for a shaft of a helical pile, the lateral support including a tubular portion for receiving the shaft and a plurality of fins extending from the tubular portion.
Abstract:
Soil displacement piles having a shaft and one or more soil displacement assemblies coupled to the shaft such that the one or more soil displacement assemblies are movable relative to the shaft are provided. Each soil displacement assembly has an upper plate, a lower plate, a reamer between the upper and lower plates and secured to each plate, and at least one soil displacement arm extending from the lower plate.
Abstract:
A load bearing clamp including a first clamp member, the first clamp member including a first semi-annular clamping surface, a second clamp member, the second clamp member including a second semi-annular clamping surface, the second semi-annular clamping surface opposing the first semi-annular clamping surface and at least one member for drawing the first clamp member and the second clamp member toward each other, wherein at least one of the first semi-annular clamp surface and the second semi-annular clamp surface includes at least one irregular surface that deforms at least a portion of a shaft clamped between the first and second clamp members.
Abstract:
A helical pile including a heat exchanger is described. The pile is formed from a lead section and one or more extension sections. The interior of the lead and extension sections are hollow and form a heat exchanger cavity. At the lower end of the lead section is a helical blade. Rotation of the lead section causes the helical blade to screw into the ground, thus pulling the lead section downward. Extension sections are added to the lead section and the pile is rotated until it is installed to a desired depth. The pile includes an inflow tube extending a predetermined distance into the heat exchanger cavity and an outflow port connected with the heat exchanger cavity. In operation, a heat carrying fluid is pumped into the inflow tube from a heat source or sink, for example, a heat pump for a building heating and cooling system. The fluid exits the tube at a point near the bottom of the heat exchanger cavity. The fluid flows upward through the heat exchange cavity and exchanges heat with the surrounding soil. The fluid flows out through the outflow port and back to the heat source or sink.
Abstract:
Soil displacement piles having a shaft and one or more soil displacement assemblies coupled to the shaft such that the one or more soil displacement assemblies are movable relative to the shaft are provided. Each soil displacement assembly has an upper plate, a lower plate, a reamer between the upper and lower plates and secured to each plate, and at least one soil displacement arm extending from the lower plate.