Cover Accessories & Ports

Steel Double Helix Augers

Screw-in steel earth anchors for the anchor trench, weight pipes, and guy wires.

A double helix auger is a steel earth anchor: a shaft with two helical plates that screws into the ground, with an eye at the top to attach whatever needs to be held. The two plates engage the soil at two points along the shaft, so the anchor resists pull-out once it is turned in.

EFI crews use these augers on their own cover installations. They add holding strength in the anchor trench, anchor weight pipes to the shore, and secure guy wires on standpipes for emergency events. The same anchors are available direct from the EFI shop in Gaston, South Carolina.

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Specifications

Build & materials

Construction	Steel shaft with two helical plates
Top	Eye for wire, cable, or hardware connection
Installation	Screws into the ground; plates resist pull-out
Fabrication	In-house at the EFI shop, Gaston SC

Where It's Used

Common applications

Added holding strength in the cover anchor trench
Anchoring weight pipes to the shore
Guy wires on standpipes for emergency events
General ground anchoring around a covered lagoon

These parts mount on EFI floating covers and gas-tight digester covers, and are fabricated at the EFI shop in Gaston, SC.

FAQ

Questions about this part

They are general-purpose earth anchors. EFI's own crews use them to add holding strength in cover anchor trenches, to anchor weight pipes to the shore, and to secure guy wires on standpipes for emergency events.

Each plate is a bearing surface against the soil. The two plates engage the ground at two points along the shaft, and both bear against the soil to resist pull-out.

The auger turns into the ground like a screw, and the same helical plates that carry it down then bear against the soil to resist pull-out. The eye at the top stays above grade for the wire, cable, or hardware connection.

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