Building Construction Handbook, Eighth Edition

Boring Methods to Obtain Disturbed Soil Samples ~

1. Hand or Mechanical Auger † suitable for depths up to 3 000

using a 150 or 200 mm diameter flight auger.

2. Mechanical Auger † suitable for depths over 3000 using a
   flight or Cheshire auger † a liner or casing is required for
   most granular soils and may be required for other types of
   subsoil.


3. Sampling Shells † suitable for shallow to medium depth
   borings in all subsoils except rock.

Soil Investigation