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Slim
Joined: 05 Mar 2006 Posts: 6609 Location: New England (In the US of A)
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Ty Gwyn
Joined: 22 Sep 2010 Posts: 4610 Location: Lampeter
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dpack
Joined: 02 Jul 2005 Posts: 46168 Location: yes
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Ty Gwyn
Joined: 22 Sep 2010 Posts: 4610 Location: Lampeter
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dpack
Joined: 02 Jul 2005 Posts: 46168 Location: yes
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Posted: Tue Jan 26, 21 1:09 am Post subject: |
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umm, known, ignored and later hidden is bad
a drop shaft and multi level workings as seemingly in the china tragedy would seem to have built in h and s issues
if we had needed to continue i was heading for a quarry face as a "emergency exit" as we wormed and chambered for living and storage space, down and secure is fine but a back door made sense
in some ways holes are comfortably "safe", in others they can be well nasty
had we needed to continue i recon i had about 50 ft to go sideways from the lowest "chamber" to get to the face(i was going to get close with a tiny hole [air could be useful as well] that could be enlarged quickly if needs be)
the top was hard, with lots of metal and concrete and obstacles physical and human to eviction, but emergency exit was in the plan , even if it needed stealth
an obstructional intent in gritstone with sandstone/sandy bits and fractures is pretty safe compared to hunting coal or minerals for a living
any occupied hole should have at least 2 doors imho, two drops and work between them is a good plan for any mining, money makes that tricky
the gleison thing of ignoring the water out of the "break through " drilling was very wrong, i am an amateur but would not have popped that wall even without the benefit of maps etc that showed where it might be coming from |
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Ty Gwyn
Joined: 22 Sep 2010 Posts: 4610 Location: Lampeter
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Mistress Rose
Joined: 21 Jul 2011 Posts: 15932
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Posted: Tue Jan 26, 21 8:12 am Post subject: |
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I know there were a lot of questions asked at the time, but it seemed to fade from the news Ty Gwyn. Thank goodness mine safety in the UK, and lack of mines, makes that rare.
Slim, the UK is a small country with lots of people. A lot of towns owe their existence to mines, ports and similar, so there are now a lot of ways the old reasons can come and bite them. For instance, salt has been extracted at a number of towns ending in 'wich' since at least Saxon times; over 1000 years ago, and one at least has serious subsidence because of it. In our woods we have the remains of Bronze Age fields and burial mounds, Saxon boundary ditches and banks and WWII dug outs. This history dates back over 3000 years, and is within about a mile of a village of several thousand people. We always tell anyone cutting in the woods that there is archaeology in every part and to familiarise themselves with it before they trip over it or fall down it. |
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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dpack
Joined: 02 Jul 2005 Posts: 46168 Location: yes
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