Helical outrigger assembly serving as an anchor for an underpinn

Details Helical outrigger assembly serving as an anchor for an underpinn Helical outrigger assembly serving as an anchor for an underpinn

1994-01-25

1996-01-09

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Underpinning

405229, E02D 500

Patent

active

054824079

ABSTRACT:
A helical outrigger apparatus attached to an underpinning drive assembly for exerting an auxiliary anchoring force upon the underpinning drive assembly while sinking piers, pilings, screw-type underpinnings and the like. The piers, pilings, etc. are used to lift and support new and existing structures. The anchoring force is used to supplement a principal anchoring force provided by a dead weight of the structure. The helical outrigger apparatus fastens to a pier bracket which supports the underpinning drive assembly during operation. The helical outrigger apparatus includes a screw-type helical anchor that is sunk into the ground temporarily. The apparatus includes at least one outrigger fastened to the pier bracket. Multiple helical outriggers with anchors may be located evenly along the drive assembly. Each outrigger assembly includes an arm that is pivotally and telescopically moveable to facilitate connection between the pier bracket and the corresponding helical anchor.

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