| Entwisle, D, Lee, K A, and Lawley, R S. 2015. User guide for ‘BGS Civils’ - a suite of engineering properties datasets. British Geological Survey Internal Report, OR/15/065.
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The excavatability dataset uses the classification for the TYPICAL density and TYPICAL strength rating for the 0–2 m depth range. These four excavatability ‘ratings’ correspond with the ‘BS5930_term’ which denotes the STRENGTH rating of the materials and the ‘mode_of_excavation’ denotes one of the four excavatability classes as shown below.
| BS5930_term
|
MODE OF EXCAVATION
|
| Extremely Strong
|
BLASTING
|
| Very Strong
|
BLASTING
|
| Strong
|
RIPPING
|
| Medium Strong
|
RIPPING
|
| Weak – Strong
|
RIPPING
|
| Weak – Medium Strong
|
RIPPING
|
| Weak
|
POWER TOOLS
|
| Very Weak – Very Strong
|
POWER TOOLS
|
| Very Weak – Strong
|
POWER TOOLS
|
| Very Weak
|
POWER TOOLS
|
| Extremely Weak
|
POWER TOOLS
|
| Hard
|
POWER TOOLS
|
| Very Stiff
|
POWER TOOLS
|
| Stiff to Very Strong
|
POWER TOOLS
|
| Stiff – Weak
|
POWER TOOLS
|
| Stiff – Very Weak
|
POWER TOOLS
|
| Stiff
|
HAND TOOLS
|
| Firm – Stiff
|
HAND TOOLS
|
| Firm
|
HAND TOOLS
|
| Soft – Firm
|
HAND TOOLS
|
| Soft
|
HAND TOOLS
|
| Very Soft – Soft
|
HAND TOOLS
|
| Very Soft
|
HAND TOOLS
|
| Very Dense – Weak
|
HAND TOOLS
|
| Very Dense
|
HAND TOOLS
|
| Dense
|
HAND TOOLS
|
| Medium Dense – Dense
|
HAND TOOLS
|
| Medium Dense
|
HAND TOOLS
|
| Loose – Medium Dense
|
HAND TOOLS
|
| Loose
|
HAND TOOLS
|
| Very Loose
|
HAND TOOLS
|
| Variable
|
VARIABLE
|
| Not Applicable
|
N/A
|