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Author:
Christopher Phillips
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2006-01-15 |
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As a geophysicist, I am dismayed by the lack of discussion in the geophysics forum.
There have been many advances in geophysics in the last number of years, with advances in equipment, research, and low cost of computing power.
We have conducted various geophysical projects for geotechnical clients, including:
- Investigation of extent of voids beneath concrete slabs
- Concrete integrity testing
- Pile Integrity Testing
- Pavement and Asphalt Thickness (Road GPR)
- Bridge Deck Investigations (Delamination/Deterioration mapping)
- Soil/Rock Stiffness profiling using SASW/MASW, crosshole seismic, VSP, and shear refraction
- Fracture detection and orientation mapping for joint set mapping of proposed open pit mines
This board (geophysics) has been pretty stagnant, with most discussion related to MASW.
I would like to try and open up this discussion forum with increased interest from geotechnical engineers with questions about how geophysics can help them with their specific problems.
There are a number of geophysical methods, including:
- MASW/SASW
- Seismic Methods
- Ground Penetrating Radar
- Electrical Resistiviy Methods
- Electromagnetic Methods
- Magnetic Methods
- Non Destructive Testing Methods
All of which have application to the geotechnical engineer and should be seen as another tool in your toolbox.
Please post in this forum if you have any questions about how geophysics can help with your specific problem, or help better approach a problem you often encounter. Post a problem and some information on the project and let the geophysics community see what we can do to provide you a solution that can help.
Thanks,
Christopher Phillips.
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Follow-up:
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Author:
Christopher Phillips
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2006-01-15 |
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P. Singh,
Seismoelectrics exploits the physical phenomena that stress waves induce electrical currents in the ground. A seismic source is used to generate stress waves and the induced electrical currents are then mapped to determine variations in the layering of ground materials.
It is a method that is primarily used in the exploration for minerals as sulfides and ore bodies generate large electrical currents relative to background, but has been applied to shallower mapping of top of bedrock, although in these cases there are other methods that would probably be better suited to the task of bedrock delineation (true seismic methods, GPR, or electrical resistivity).
Hope that answers your question.
Chris.
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Follow-ups:
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Singh, P., 2006-01-15
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Christopher Phillips, 2006-01-15
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Vipul Nagar, 2006-01-17
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Zivko Terzic, 2006-01-22
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Dr. C. Krishnaiah, 2006-01-27
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Brian Williams, P.E., P.G., 2006-02-14
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Matt, 2006-02-16
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Christopher Phillips, 2006-02-17
»
Derek Irving, 2006-03-09
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Derek Irving, 2006-03-09
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Subject:
Geophysics for Geotechnical Applications 