Soil Exploration. T.E. Civil 2009-2010 G.E.- I. Topics Covered. Introduction Methods of investigation Methods of boring Soil samplers and sampling Location and number of pits and borings Penetrometer tests Borehole logs Geophysical methods. Introduction.
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T.E. Civil 2009-2010
Collection of disturbed and/or undisturbed samples of subsurface strata from field.
Conducting in-situ tests of subsurface material and obtaining properties directly or indirectly.
Study of ground water conditions and collection of sample for chemical analysis.
Geophysical exploration, if necessary.
Laboratory testing on samples
A complete site investigation will consist of:
Permits visual inspection of subsurface conditions in natural state.
Max. depth limited to 18 -20 feet.
Especially useful for gravelly soil where boreholes may be difficult.
Sampling/testing done on exposed surfaces.
Hand operated augers
Power driven augers
Another example of wash boring is called mud rotary drilling (soil) or core drilling (rock).
Schematic for wash boring
Diamond Drill Bit
Tricone drill bit