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Solent: Near surface geophysics as used in Geotechnical Site Investigations
Event type:
Evening meeting, Regional Group
Organised by:
Solent Regional Group
Venue:
University of Southampton
Event status:
EVENT CLOSED
Geophysics is a modern science routinely applied to ground exploration. A range of survey tools are available for mapping/profiling subsurface targets such as mineral bodies, engineering rockhead, shallow archaeology, environmental contamination through to unexploded ordnance. Geophysical surveys are becoming more common place as they become an accepted part of geotechnical site investigations.
Advantages include: low cost, rapid site coverage, no exposure to buried hazards and minimal surface disturbance, and results that are easy to comprehend.
Limitations: certain sites are not suitable i.e. reinforced concrete slabs, noisy sites; targets but does not replace intrusive work; small targets at depth.
Through the use of several case studies, the trials, pitfalls and successes of using geophysics are discussed.
The case studies include:
- Bypass scheme over limestone
- Wind farm developments (Wales and Scotland)
- Mine workings (School Extension, Greater Manchester)
- Pipelines
In these case studies methods such as resistivity tomography, microgravity, seismic, electromagnetic and magnetics techniques will be introduced.
Speaker
Dr Simon Hughes (Operations Manager – TerraDat UK Limited)
Time
6 for 6.30pm
Venue
National Oceanographic Centre, University of Southampton