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PostPosted: Wed May 16, 2012 9:20 pm 
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Joined: Wed May 16, 2012 12:49 am
Posts: 6
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hi, my name is jose, reading about the gpr, I have doubts whether it will be possible to determine the following cases with a gpr.

Case 1. It's a sewage drain, it could determine dimensions to

a. Concrete box
b. water
c. Sediment
d. Soil over the box.

Case 2. It is a lagoon where sewage and oil deposits, it could determine dimensions to

a. Water and oil.
b. Sediment
c. Soil with oil
d. Clean Soil.

In this case, water typically has no more than 3 m, 30 cm sediment, and contaminated soil to get a layer of clay, 2, 3 m.

Thanks, and sorry for my bad English.

José J


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PostPosted: Thu May 17, 2012 4:04 pm 
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Joined: Mon Dec 28, 2009 9:15 pm
Posts: 15
To get an idea in advance whether the investigation radar installation to be successful in both cases it is necessary to conduct the simulations. You can simulate the cases 1 and 2 using the simple tools GeoscannerAB, or a FDTD simulator type Gprmax.
However looking at the figures in case 1 of the sewer you can certainly have some reflections to the top of the box in concrete and also probably to the bottom, but it will be difficult to discriminate the interface water / sediment. A way to do this is to put a metal target on sediment. WIth the FDTD simulation have been the answer if you can tell or not. For case 2 applies the same reasoning. But here we must also consider at what level you lead the investigation: on the water surface or the antenna inside water or over sediment?


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PostPosted: Thu May 17, 2012 7:54 pm 
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Joined: Wed May 16, 2012 12:49 am
Posts: 6
In case 2, on the water surface.

Thank you for your answer


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