Solid Square Twin Helix Anchor

3/4"&1" dia rod standard strength and mid-strength solid square twin helix anchor twin helix square shaft belong to helical anchors.It is geotechnical tools consist of a steel shaft with helical plates welded near the end. Their applications for light and heavy foundation systems construction, tie downs uplift structures, piers to underpin and level structures subject to settlement, fixing for the slopes and structures.

Features

Holding strength per soil class with 3/4" rod:

Soil Class 2: 32000 lbs

Soil Class 3: 30000 lbs

Soil Class 4: 16000 lbs

Soil Class 5: 14000 lbs

Soil Class 6: 10000 lbs

Soil Class 7: 60000 lbs

Application

Solid Square Twin Helix Anchor is the type of anchor installed by rotation of its central shaft. Thus it does not need excavation of borehole or trench. The ultimate loading of a helical system can vary based on its number of helices. Generally, increasing the number of helices contributes to increment in the ultimate valence of helical anchors; however, in some cases, disturbance of the soil caused by installation process of helical anchors leads to less ultimate capacity then estimate. It can fit sand

Installation

Installation is performed using a power digger. An anchor wrench fits over the square hub and a torque measurement device is required to determine proper installation.

Correct installation is achieved only when the anchor is installed using the appropriate torque for the particular soil and anchor type.

Installation torque is usually measured using a device connected in series with the wrench, digger, and Kelley Bar during installation.

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