Airborne GPR survey - gas pipes

Geophysical applications on environmental investigation, mineral prospecting, engineering, archaeology, forensics, hydrology...
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ADobrovolskiy
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Airborne GPR survey - gas pipes

Post by ADobrovolskiy »

Hi, new portion of GPR data to share.

We did experiment to find optimal altitude for GPR survey of gas pipes with aim to trace actual coordinates.

We completed series of flights on different altitude over surface - 2, 4, 5, 7 meters with RadSys Zond-12e 500A GPR.

Conditions are wet sandy soil after week of rains. There are 2 parallel steel pipes 720mm diameter. Depth varies but should be around 1.5m.
20190724_101557.jpg
2m, reflections from both pipes are excellent:
2019-07-23-14-00-54-gpr_0008.jpg
4m, very good:
2019-07-24-09-46-47-gpr_0005.jpg
5m:
2019-07-24-09-54-56-gpr_0003.jpg
7m - still not bad:
2019-07-24-10-24-09-gpr_0003.jpg
Full data can be downloaded here - https://files.ugcs.com/s/ntHRkWLjq3ftJyC
Last edited by ADobrovolskiy on Thu Apr 02, 2020 2:29 pm, edited 1 time in total.
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geophix
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Re: Airborne GPR survey - gas pipes

Post by geophix »

It looks like that there are multiply pipes?
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ADobrovolskiy
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Re: Airborne GPR survey - gas pipes

Post by ADobrovolskiy »

Hello,
there are 2 parallel 720mm pipes.
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ADobrovolskiy
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Re: Airborne GPR survey - gas pipes

Post by ADobrovolskiy »

Video about this experiment - https://youtu.be/vI_gzUyMpPw
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