Environmental Engineering Reference
In-Depth Information
FIGURE 2.85
Jointed granite gneiss and crushed rock zone at other end of tunnel of
Figure 2.84
about 400 m distant. Core
recovery is shown in
Figure 2.86.
The sample is immediately described and logged. It is not allowed to dry out, since the
consistency of cohesive soils changes and details of stratification become obscured. The
sample is then preserved and protected from excessive heat and freezing.
