Soil classification - Geotechnical Investigation and Design Tables - page 18

- Project Location.
- Project Number.
- Sheet No. - of -.
- Reference: Easting, Northing, Elevation, Inclination.
- Date started and completed.
- Geomechanical details only. Environmental details not covered.

2.2 Borehole record in the field
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The above is an example of a template of a final log to be used by designer. The
sequence of entering field data, its level of detail and relevance can be different.

•

Advantages of the dissimilar borehole template in the field are:
- A specific field log allows greater space to capture field information relevant
to a quality log but also administrative details not relevant to the designer
(final version).
- The design engineer prefers both a different sequence of information and
different details from the field log, ie the field log may include some
administrative details for payment purpose that is not relevant to the designer.
- A designer often uses the borelog information right to left, ie assessing key
issues on the right of he page when thumbing through logs, then looking at
details to the left, while the field supervisor logs left to right, ie, progressively
more details are added left to right.

- In this regard a landscape layout is better for writing the field logs while a

portrait layout is better for the final report.

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However, many prefer the field log to look the same as the final produced borehole
record.

Table 2.2 Borehole record in the field.

Drilling information Sampling and testing Soil description Comments and origin

•

Pocket and Palm PCs are increasingly being used. Many practitioners prefer not
to rely only on an electronic version. These devices are usually not suitable for
logging simultaneously with fast production rates of drilling, even with coded