Subsurface explorationand sampling

Subsurface exploration
and sampling 
developing a design soil
profile.
 Drill a series of
vertical holes in the
ground (borings) 75-
600 mm in diameter
and 3 to 100 m deep.
Exploratory trenches:
explore the upper 3m
of soil.

Results (English) 2:

Subsurface exploration
and sampling 
design Developing a soil
profile.
 Drill a series of
vertical holes in the
ground (borings) 75-
600 mm in diameter
and 3 to 100 meters deep.
Exploratory trenches:
explore the upper 3 meters
of soil.