Auger boring is defined by its use of a string of casing and augers to transfer spoil from the face or front of the bore to the shaft.

Sizes: 18” - 48”
Lengths: 0’ - 500’
Preferred Soil: Most materials wet or dry

Step 1- Auger boring requires a thirty-five foot long shaft that will accompany a twenty foot joint of steel casing and an auger boring machine. It does not require an exit shaft, although typically, one exists.

Shaft Preparation

Auger Boring Machine

Shaft w/Boring Machine and Casing

Step 2 - To begin this process a piece of auger is placed inside the steel casing and the casing is set in front of the boring machine in the shaft. Then the auger is coupled to the front of the boring machine which will rotate the auger inside the steel casing.

Auger ready to be placedin Casing

Auger being pushed into Casing

Step 3 - The spoil is removed from the face of the bore as the casing is advanced forward until the first piece of casing is buried. The casing installed will continuously support the bored hole.

Spoil Bucket

Step 4 - At this point the machine is separated from the auger, and a new piece of casing is set in the shaft to be buried in the same manner as the first.

Step 5 - During this process the string of auger is removed from the casing in order to check the line and grade of the bore. At this time, any corrections required are made. Then the auger is reinserted and the bore is continued.

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