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Geophysical Site Investigations STS provides a specialist site
investigation service using geophysical methods.
These have been widely and successfully employed for many
years, primarily in the search for oil and gas deposits,
and are becoming increasingly popular in tackling
problems associated with geological, engineering and environmental issues.
Recent developments have
encouraged the application of these techniques for civil
engineering works; they are able to give extensive
coverage of a site for relatively small cost, enabling
details of ground structure to be established prior to
the use of conventional borehole drilling.
- Thickness of overburden
- Depth to bedrock
- Mapping subsurface lithologies
- Stratigraphic studies
(erosional surfaces, unconformities, etc)
- Geological structures (faults,
folds, joints, fissures, etc)
- Buried river channels
- Groundwater studies (water
table detection, groundwater movements, etc)
- Mapping mineral, sand and
gravel deposits
- Sink holes and/or solution
cavities
- Pipeline route studies
- Soil corrosivity
- Rock rippability
Engineering
Geophysics
- Mineworkings, concealed
voids/subsidence
- Buried mineshafts
- Detecting old foundations
within derelict sites
- Concealed cellars
- Service location
- Sea defence studies
- Landfill geometry
- Leachate Plumes
- Buried waste hazards
- Buried storage tanks
- Unexploded ordnance
Geophysics involves the
measurement of physical properties, usually from the
Earth's surface, to obtain useful information on the
structure and composition of the concealed subsurface
through comprehensive interpretation of the measured
geophysical data. Typical methods include:
- Surface Penetrating Radar
- Electromagnetic Inductive
Ground Conductivity - Profiling/Mapping
- Total Magnetic Field/Magnetic
Gradient - Profiling/Mapping
- Earth Resistivity Measurement
- Imaging/Sounding
- Self Potential
- VLF - Profiling/Mapping
- Seismic Refraction/Reflection
- Profiling
- Microgravity -
Profiling/Mapping
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Send mail to keith.veness@stsltd.co.uk with questions or comments about
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Copyright © 1999 Structural Testing Services Ltd
Last modified: 29 February 2004
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