Hand-held augers consist of an auger bit, a solid or tubular drill rod, and a
"T" handle. When the drill rod is threaded, extensions can be added or auger
bits interchanged. The auger tip drills into the ground as the handle is rotated, and soil
retained on the auger tip is brought to the surface and used as the soil sample.
Alternately, augers can be used to bore to the desired sampling depth, and a tube sampler
used for collection. Augers can be used around piping and utility lines. A wide variety of
auger tips are available including:
Screw Auger: |
Used on cohesive, soft, or hard soils. Will not retain dry, loose, or granular
material. |
Dutch Auger: |
Designed specifically for wet clayey, fibrous, or rooted soils (marshes). |
In-situ Soil Recovery Auger: |
Collects soil in reusable liners utilizing a closed top to reduce contamination from
caving sidewalls. Might not retain dry, loose, or granular material. |
Eijkelcamp Stony Soil Auger: |
Used on stony soils or asphalt. |
Planner Auger: |
Cleans out and flattens the bottom of predrilled holes. |
Post-Hole/Iwan Auger: |
Used on cohesive, soft, or hard soils. Will not retain loose material. |
Silage Auger: |
Used on silage pits and peat bogs. |
Spiral Auger: |
Used to remove rock from auger holes so that borings can continue with other auger
types. |
Mud Tips: |
Opening cut out of the cylinder for easy removal of heavy, wet soil and clay samples.
The bits are similar to regular tips but spaced further apart. |
Sand Heads: |
Designed for use in extremely dry, sandy soils. The bits are formed to touch in order
to hold dry sand samples. |