robbo11
  • robbo11
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11 years ago
Hi

I am trying to locate the top of a shaft in a wood. The shaft connects with a sough at 9m and I know roughly where it is by finding it in the sough and surveying over-land. I'm on my fourth hole and I'm in danger of turning the ground into an egg-box. Any ideas?

Thanks
John
Morlock
11 years ago
What's the state of the shaft bottom, a pile of infill or open for some distance up?
robbo11
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11 years ago
Stones, the lowest quite large, with some tree roots showing through.
royfellows
11 years ago
Hold a naked flame close to the colllapse and see if there is an upcast draft. If so use your imagination to create some coloured smoke or similar and have someone on the surface watching.
This is a long shot as the shaft is probably filled completely... which is why you cannot locate it at surface.

The only alternative then would be an accurate tape and compass survey extrapolated onto a surface plan.
My avatar is a poor likeness.
LeeW
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11 years ago
Any particular reason you are trying to find a shaft at surface?
From the photo it looks like a reasonably small diameter shaft.
You could always try drilling inclined or trenching?
I went in a mine once.... it was dark and scary..... full of weirdos


When do I get my soapbox, I need to rant on about some b***cks
robbo11
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11 years ago
It is so frustating. There isnt an up-draught and its a 300yr old shaft, so, being in a wood, there is 1.5m of soil over the top.

Any beacon or technology I could place at the bottom and find it 9m metres away at the surface?
christwigg
11 years ago
I was going to suggest a Ferret Finder, but I think 9m is probably too far (and they cost a fortune anyway)

Apparently a Bellman and Flint Terrier locator has a much bigger range, but is it worth the thick end of £400 to find out if it works through 9m of rock ?
pwhole
  • pwhole
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11 years ago
Is it remote enough from civilization to smoke-bomb it? And far enough away from the entrance for the two exhausts to be not be confused? That's one option, though if it's covered in soil, I guess it's unlikely to get through. Otherwise I guess radio-location would do it, if it's not possible using normal surveying methods?
Manicminer
11 years ago
Are you on your own or do you have someone to take with you? One of you could tap the roof of the raise (the larger rock or the very top of the sidewall) with a metal bar/chisel fixed to the end of a long pole and the other one should be able to hear it on the surface.
Gold is where you find it
Mr.C
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11 years ago
We generally use a low frequency beacon / receiver system
(similar to a molephone but without the voice comms), for this sort of location work.
If it's local ish to N Staffs I could perhaps have a look for you.
We inhabit an island made of coal, surrounded by a sea full of fish. How can we go wrong.......
robbo11
  • robbo11
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11 years ago
That would be great, thanks. The sough is flooded now, so I will give you a shout when the water drops back. I will supply you and your pal a top lunch and can refund your petrol. It's in Youlgrave, Derbyshire.

I'll put my spade away and hang on.

Many thanks Mr. C
Mr.C
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11 years ago
OK.
Might just be me coming though, so someone else will have to position the beacon at the shaft bottom. It's pretty easy to explain, but it does need to be placed on flat dryish place about 2 ft square.
Once the beacon is positioned & turned on, decent location takes up to 1/2 hr - dependant on how close your estimated position is to the actual.
Drop me a PM when ready - after Christmas now please!
We inhabit an island made of coal, surrounded by a sea full of fish. How can we go wrong.......
AR
  • AR
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11 years ago
If you need an extra pair of hands I might be able to assist, since I'm based at Flagg I can get down to Youlgreave pretty easily. I take it the intended target is in Bradford Dale?
Follow the horses, Johnny my laddie, follow the horses canny lad-oh!
Roger L
11 years ago
Do you know anybody who is into 'Dowsing' They might be able to help you.

In the near future I propose to have a go to find some local shafts.
Mine Lectures & Walks available for around Huddersfield
Roy Morton
11 years ago
I've seen dowsing work well in the past for shafts. I once saw a site foreman dowse for lead water pipes on a site in Penzance for which there were no plans. These all needed to be replaced as a matter of safety and water purity etc. One of these was picked up crossing the bed of a 9 inch deep stream. It was undetectable either side with a pipe finder.
As the saying goes, don't knock it till you've tried it, it's well worth a go.
"You Chinese think of everything!"
"But I''m not Chinese!"
"Then you must have forgotten something!"
somersetminer
11 years ago
"Roy Morton" wrote:


As the saying goes, don't knock it till you've tried it, it's well worth a go.



talking of which..
http://www.bbc.co.uk/mediaselector/check/nationonfilm/00432?size=4x3&bgc=C0C0C0&nbram=1&bbram=1 
(1:17 onwards, recommend setting the window to double size. leave the cursor in the window while the video is playing and resize/theatre mode option will appear!)
Yorkshireman
11 years ago
Anything interesting here?

Seems to be the area:
http://tinyurl.com/l3sad9w 
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