Author Topic: Bad air / pollution / bad bolts / etc  (Read 32894 times)

Offline Jon daniels

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Re: Bad air / pollution / bad bolts / etc
« Reply #75 on: January 17, 2015, 10:10:01 am »
Hi Yeh don't know how quickly it can change but been in places before within weeks and one day ok next time poor air, yesterday was really low pressure which I believe doesn't help , and loads of farm sewage everywhere ..
Probably be fine next time hopefully getting down there soon with Dcro gas meter to get an accurate reading


Offline jdduncan

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Re: Bad air / pollution / bad bolts / etc
« Reply #76 on: January 24, 2015, 10:50:01 am »
It could be my brain/eyes acting up in the wee hours last night (this morning I guess), but I thought it looked like the 2nd P bolt down from the top of West Swirl Passage in Oxlow seemed a bit funny in its slight looseness.  As I was standing around it if for a minute I gave it a little wiggle and the bottom seemed to move slightly more than the top, which struck me as a bit odd.  I suspect its perfectly fine, but figured I'd mention it.  I'd imagine someone can confirm that in the near future given the amount of traffic through oxlow.

David 

Offline al

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Re: Bad air / pollution / bad bolts / etc
« Reply #77 on: February 11, 2015, 12:30:08 am »
Dropped into Robin's Shaft tonight with a fairly strong group from my regular Tuesday night crowd.

I carried both DCA's meters with me, and recorded the levels of both oxygen and carbon dioxide at several points down the shaft, and up in Lord's Chamber.

Recent very low temperatures have probably helped, but the current levels of CO2 are uniformly around 0.5% throughout the mine - which is fine. I can supply the actual figures if anybody wants them.
Old ... but not old enough to know any better

Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #78 on: March 30, 2015, 09:37:58 pm »
ELDON HOLE
I've had an unconfirmed but trusted report that the belay stakes at Eldon Hole are dangerously rusted after an inspection. We will look into this as soon as possible but in the mean time please treat the stakes as highly suspect. Do not belay from the fence posts. South route does not rely on stake anchors.
I hope to check this out on Thursday 2nd April and confirm the exact routes effected. Help also needed on this date at Axe Hole.

Pete Knight
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Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #79 on: April 02, 2015, 01:08:08 pm »
ELDON HOLE - Update 2/4/15
I popped up to Eldon Hole today and had a look at the ground anchors. Once I’d kicked a bit of soil out the way to expose the base of the posts I gave them all a visual and ‘kick’ inspection. The following were my observations based on no qualifications but the view of "would I take clients here":

North route – Both anchors appear in good condition. Removed old rusty maillon that was occupying one hole.
South route – Single anchor looked in okay condition.
East route – Both bollards showed signs of corrosion. The base of bollard marked ‘C’ was particularly bad. Recommend DO NOT USE. Treat bollard ‘D’ as suspect too.
West route – Both bollards showed signs of corrosion. The base of bollard marked ‘A’ was showing large amounts of corrosion. Recommend DO NOT USE. Bollard ‘B’ should be thought of as suspect too.

The DCA is not the cave police or the HSE. Cavers using any anchor do so at the own risk and should first check that the anchor is suitable for their intended use. Ground anchors especially should be thoroughly scrutinised before use. If someone is happy to take on the job of organising a replacement set of anchors then great, I will happily help as much as I can. If not, I'm in busy work season now and they will be addressed in the autumn.

Pete Knight
DCA Projects

Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #80 on: April 28, 2015, 09:08:58 pm »
SUICIDE CAVE - Bad Bolt
The 3rd P-Bolt anchor on the left wall as you approach the 1st pitch, which is the one used for the right side of the y-hang, is rotating in its hole. The bolts rotates a few degrees easily and the visible resin rotated with it.

GIANT'S HOLE - Bad Bolt
The 1st P-Bolt anchor on the left wall when approaching the pitch head at Garlands also rotates within the wall. This anchor also seems to move with the resin still attached.

The relevant people have been notified but treat both anchors as suspect and avoid using. As ever, check your bolts!

Pete Knight
DCA/PICA

Offline Jenny P

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Re: Bad air / pollution / bad bolts / etc
« Reply #81 on: November 04, 2015, 11:13:02 am »
The P-anchor reported loose at the top of Garlands Pot in Giants Hole has now been replaced, thanks to the bolt installation team from DCA.

They hope shortly to check the one reported loose in Suicide Cave and we'll let everyone know as soon as that has been dealt with.

Jenny Potts,
DCA Hon. Sec.


Offline Badlad

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Re: Bad air / pollution / bad bolts / etc
« Reply #82 on: November 04, 2015, 11:22:56 am »

Out of interest.  Have the DCA started to use the more conservation friendly IC Anchor. 

Interested, because after much discussion I believe the various CNCC anchor groups have made the IC anchor their preferred anchor of choice on conservation grounds.

Offline SamT

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Re: Bad air / pollution / bad bolts / etc
« Reply #83 on: November 04, 2015, 12:00:43 pm »
Not as far as I'm aware, though I've not been involved in any related discussions recently


Offline JB

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Re: Bad air / pollution / bad bolts / etc
« Reply #84 on: November 15, 2015, 06:04:49 pm »

Out of interest.  Have the DCA started to use the more conservation friendly IC Anchor. 


I had an informal discussion with Simon Wilson about this today. The IC anchors that Simon manufactures are not available to other regions. Simon manufactures them to equip his local caves in the Dales and isn't looking to sell them/doesn't have capacity to manufacture them for other regions. It's Bolt Products anchors that are currently installed in Derbyshire. Just thought I'd explain that rather than leave the question hanging.

Jules.

Offline SamT

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Re: Bad air / pollution / bad bolts / etc
« Reply #85 on: November 15, 2015, 10:20:24 pm »

Thanks for clearing that up Jules.  I should have known but I didn't click.. I'd contacted Simon earlier in the year re buying some of his bolts for some climbing projects of mine, and he explained exactly the same.

Offline Pete K

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Re: Boss Aven, Giant's
« Reply #86 on: May 26, 2016, 09:48:19 am »
Giant's Hole - Boss Aven
I understand that the last section of the in situ rope at the very top of Boss Aven is in a dangerous state. DCA do not install or check ropes on any bolts so it is important for cavers to inspect fixed gear themselves prior to use.
Either myself or Phil from DCC hope to be able to donate and install a suitable replacement in the not too distant future. Do take care if ascending this part of the system.
Pete

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Re: Bad air / pollution / bad bolts / etc
« Reply #87 on: May 26, 2016, 10:40:11 am »
I thought Ralph Johnson replaced that rope a while ago after it was first reported - probably on here. Maybe this is subsequent damage. Isn't it rigged to natural? Maybe it's time for a P-hanger?

Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #88 on: May 26, 2016, 10:59:31 am »
I thought Ralph Johnson replaced that rope a while ago after it was first reported - probably on here. Maybe this is subsequent damage. Isn't it rigged to natural? Maybe it's time for a P-hanger?
This will be new damage I guess. Ralph has not been with us for a while now. I'll have a look at the anchors when I'm up there. We could ask DCA to place some resin anchors if required.

Offline RichardB1983

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Re: Boss Aven, Giant's
« Reply #89 on: May 26, 2016, 01:17:16 pm »
Giant's Hole - Boss Aven
I understand that the last section of the in situ rope at the very top of Boss Aven is in a dangerous state. DCA do not install or check ropes on any bolts so it is important for cavers to inspect fixed gear themselves prior to use.
Either myself or Phil from DCC hope to be able to donate and install a suitable replacement in the not too distant future. Do take care if ascending this part of the system.
Pete

I think there were two bits of damage, as Phil will be able to tell you: in addition to the damaged rope right at the top, there's also a red traverse-line leading away from the top of the vertical pitch after the initial climb up out of the streamway - where the rope is badly damaged at the end nearest to the pitch. It's not as big an issue as you can easily avoid having to clip into the damaged bit - but probably worth someone looking into at some point.

Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #90 on: May 28, 2016, 07:40:49 pm »
This has now been sorted. Take care of loose rock at the top.

Offline Pete K

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Suicide Cave Warning
« Reply #91 on: October 10, 2017, 09:55:53 am »
https://ukcaving.com/board/index.php?topic=22595.0

Warning - Suicide Cave, Winnats Pass.
There has always been a nasty bit of rock on the wall at the far pitch in the roof (3rd p). Last night we attempted to remove this once and for all which successfully ended with about half a ton being redistributed to the floor.
Removing this section revealed a lot more loose rock, one section of which is very close to the P anchor or may even contain it. The other being at least a ton.
I am left in no doubt that the far pitch is a death trap and will not be going anywhere near it with groups or friends in future. You just have to look at the boulder fill inside this cave to see the potential risks.
The route along at floor level is still open but does have a good selection of new rocks. 1st & 2nd pitches do not seem to be affected.
Pete Knight
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Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #92 on: August 20, 2018, 07:29:32 am »
Warning - Hillocks Mine, Climbing Shaft.
https://ukcaving.com/board/index.php?topic=23914.msg299695

There has been a collapse at the shaft top of the Hillocks Climbing Shaft in the small copse. By description it appears that a portion of the ginging came away while cavers were ascending. Luckily no one was hurt and Pete Dell has already been over to secure a warning notice to the lid. This is a new problem here and is unrelated to the packwall stabilisation a few years ago.

Please refrain from using this shaft until the situation can be inspected and any remedial work carried out. Rocks dislodged from the ginging will fall the whole length of the shaft and there is no place for a caver below to get out of the way.

Pete Knight
DCA Projects

Offline Pete K

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Re: Bad air / pollution / bad bolts / etc
« Reply #93 on: November 11, 2018, 05:14:17 pm »
Masson Quarry
Please use main thread for comment and further info - https://ukcaving.com/board/index.php?topic=24285

Please note that cavers should treat access to sites in and around Masson Quarry as highly 'sensitive' right now and are advised to stay away from the site in the short term until contact has been made with the landowner.
There has been a resumption of groundworks at the quarry and heavy machinery is present. DCA were investigating the risk to the underground sites in the vicinity but unfortunately, the report has come in today that Gentlewoman's Shaft has been blocked by a large boulder. This is almost certainly a deliberate act to block access to the shaft. Thanks to Jacob (NUCC) for the pic.

DCA are already in communication with Natural England (SSSI land) and Derbyshire County Council (planning). Thanks to those who have supplied information on this matter. We request that cavers stay away from the area while DCA attempts to contact the owner and establish the facts.

Pete Knight
DCA Projects & acting Access Officer

Offline Madness

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Re: Bad air / pollution / bad bolts / etc
« Reply #94 on: December 08, 2018, 03:26:56 pm »
Tearsall Pipe Cavern - Pool Shaft

We were down Tearsall the other night and we noticed that some of the ginging in the shaft is unstable. At least one piece is likely to fall if you breathe on it and I suspect that there may be others similar. If one or two pieces go then I suspect a few more pieces above will follow.

Be careful if you go down Pool shaft.