Possible shaft collapse Camborne?

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Dolcoathguy
50.2% (Neutral)
Newbie Topic Starter

12 years ago

Large Crater has appeared next to the entrance to the new estate (yet to be built) opposite the scrap yard near to the older Tesco's. This crater (could not see if it was a shaft or not!) is surrounded by security fencing recently put up. It would have lain close to if not under the old Holmen's site.
Any better info gladly rec'd and I will try to get closer as well as check the area out on the old maps.

Is it safe to come out of the bunker yet?

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Morlock
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Newbie

12 years ago

Does this shed any light on the issue?

🔗Personal-Album-1695-Image-89704[linkphoto]Personal-Album-1695-Image-89704[/linkphoto][/link]

Dolcoathguy
50.2% (Neutral)
Newbie Topic Starter

12 years ago

Thanks.
I also checked old maps today and the old shaft indicated is marked as an Old shaft (to the east of Wheal Killas, Dolcoath) on the 1908 map. There is mention of works to "the east of Wheal Killas" in 1852. However I suspect it maybe an old 18th Century shaft.
This shaft is marked on the published maps, so therefore would have been picked up in the mining survey hopefully.
So, is this a collapse? Or work to stabilise / re-cap a known shaft before building commences? I only noticed it after a period of heavy rain on Friday, but the fencing may have been there before that. Will check the planning documents to see if there is more info.
If anyone with connections to the local capping contractors has any more info, will be interesting to hear!

EDIT:
Found some more evidence that suggests Camborne Consols was on the other side of the road, so may have been part of this mine?

Is it safe to come out of the bunker yet?

Morlock
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Newbie

12 years ago

"Dolcoathguy" wrote:
Thanks.
So, is this a collapse? Or work to stabilise / re-cap a known shaft before building commences? I only noticed it after a period of heavy rain on Friday, but the fencing may have been there before that.

Possibly any of the above options, developers are normally a bit cagey about shafts etc so tend not to publish remedial works too widely.

scooptram
50.2% (Neutral)
Newbie

12 years ago

it looks like its the shaft they caped about 12 months ago !

Morlock
50.2% (Neutral)
Newbie

12 years ago

Found an interesting site whilst researching, would be pure coincidence if it's the shaft in question.

http://www.app-geo.co.uk/geotechnics.html

Dolcoathguy
50.2% (Neutral)
Newbie Topic Starter

12 years ago

They have filled it in and are putting several inspection chambers above it ....perhaps it is a connection to the sewers?? Whatever it is, it runs almost over where the shaft should be.

Is it safe to come out of the bunker yet?

Dolcoathguy
50.2% (Neutral)
Newbie Topic Starter

12 years ago

4 inspection chambers, filled with earth, then a steel grid ready for concrete to be poured over it.
I though it might be a new drain junction, but the amount of concrete that seems to be going in, could be a recap with the chambers being used for venting / access.
Will try again to access the planning files, but Cornwall County council website seems to be suffering bandwith type problems.

Is it safe to come out of the bunker yet?

Morlock
50.2% (Neutral)
Newbie

12 years ago

Sounds interesting. Anyone come across comparable structures?