Finding something underground
Discussion
I want to find something underground, specifically a man made structure (think along the lines of a stone-lined tunnel or sewer). At a guess, 2m deep. I've e-mailed various historical/archaeological organisations but either they're busy or not interested. I've heard about using GPR but don't know much about it. Has anyone here actually used it to find something underground?
The ground is soil/grass, and the item of interest circa 2m deep at a guess. I'm not allowed to damage the ground sadly or I would be in there already haha.
Dowsing, there is a local society. Part of me wants to say it's bulls
t, but then part of me is curious to see it in action.
I like the idea of contacting a local college/uni.
Dowsing, there is a local society. Part of me wants to say it's bulls
t, but then part of me is curious to see it in action.I like the idea of contacting a local college/uni.
V8Matthew said:
Dowsing, there is a local society. Part of me wants to say it's bullst, but then part of me is curious to see it in action.
Get a wire coathanger and two biro cases and have a go; you have nothing to lose.t, but then part of me is curious to see it in action.At school we were able to follow a sewer by this method; I've done it and it works. I have no idea how!
You can also hire ground survey equipment from tool hire companies these days. E.g.
http://www.brandontoolhire.co.uk/en/phoenix-survey...
http://www.brandontoolhire.co.uk/en/phoenix-survey...
Simpo Two said:
Get a wire coathanger and two biro cases and have a go; you have nothing to lose.
At school we were able to follow a sewer by this method; I've done it and it works. I have no idea how!
Really? Wow! I've got a link for you to make some cash: https://en.wikipedia.org/wiki/List_of_prizes_for_e...At school we were able to follow a sewer by this method; I've done it and it works. I have no idea how!
jshell said:
Really? Wow! I've got a link for you to make some cash: https://en.wikipedia.org/wiki/List_of_prizes_for_e...
I wouldn't call it 'paranormal'. I'm the biggest atheist cynic you'll meet. But I did it and it worked. Somehow, it's physical. Call something 'paranormal' and you've automatically filed it as 'bks only fit for a Channel 5 series'.Simpo Two said:
jshell said:
Really? Wow! I've got a link for you to make some cash: https://en.wikipedia.org/wiki/List_of_prizes_for_e...
I wouldn't call it 'paranormal'. I'm the biggest atheist cynic you'll meet. But I did it and it worked. Somehow, it's physical. Call something 'paranormal' and you've automatically filed it as 'bks only fit for a Channel 5 series'.V8Matthew said:
The ground is soil/grass, and the item of interest circa 2m deep at a guess. I'm not allowed to damage the ground sadly or I would be in there already haha.
If you're not allowed to disturb the ground to have a look, knowing its there(or not there) is pretty academic shirley?V8Matthew said:
I want to find something underground, specifically a man made structure (think along the lines of a stone-lined tunnel or sewer). At a guess, 2m deep. I've e-mailed various historical/archaeological organisations but either they're busy or not interested. I've heard about using GPR but don't know much about it. Has anyone here actually used it to find something underground?
GPR is best for finding things with differing densities; for example finding a void in soil. However, if your structure is solid and has 2m of rubble above it, there is no chance of GPR being able to differentiate between the two. I've used GPR a number of times for work and everytime the results have been disappointing. There are other geophysical techniques you could use but all have limitations. Unfortunately in my experience you never know whats below the ground unless you dig it up.Edited by fuzzyyo on Sunday 2nd April 22:02
Aerial photos often show up underground structures, though this depends on the time of year and the type of vegetation. In the field by my house some roman field boundaries were shown like this.
If you are in no hurry and know someone with a drone you might be able to get some results this way. I would think that the less often the surface of the ground has been disturbed (ploughing etc) since the underground structure was put in the better your chances of success.
If you are in no hurry and know someone with a drone you might be able to get some results this way. I would think that the less often the surface of the ground has been disturbed (ploughing etc) since the underground structure was put in the better your chances of success.
hidetheelephants said:
If you're not allowed to disturb the ground to have a look, knowing its there(or not there) is pretty academic shirley?
Although I'd love to dig it up, knowing it is there would be good. It's a local legend, and I'm curious in a 'Mythbusters' kind of way. Plus, if I can provide some evidence its existence, someone with the necessary permissions may decide to further investigate.
V8Matthew said:
hidetheelephants said:
If you're not allowed to disturb the ground to have a look, knowing its there(or not there) is pretty academic shirley?
Although I'd love to dig it up, knowing it is there would be good. It's a local legend, and I'm curious in a 'Mythbusters' kind of way. Plus, if I can provide some evidence its existence, someone with the necessary permissions may decide to further investigate.
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