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Mersey Tunnel - Core Samples #176011
1st Oct 2007 4:25pm
1st Oct 2007 4:25pm
Joined: Nov 2003
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Mark Offline OP

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Mersey Tunnel - Core Samples

Unfortunately there on the other side of the fence frown
And your not allowed to go in with out a pass.

O well.

Core Samples : These are the parts extracted when drilling down
under the river bed. They Drill Down then Bring up the casings
to open them and the contents examined to show the layers in the rock.


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Re: Mersey Tunnel - Core Samples [Re: Mark] #176015
1st Oct 2007 4:31pm
1st Oct 2007 4:31pm
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New Brighton
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Hmmm, as with pieces of the priory, people on ebay will probably by these wink

Re: Mersey Tunnel - Core Samples [Re: _Ste_] #176016
1st Oct 2007 4:35pm
1st Oct 2007 4:35pm
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Mark Offline OP

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I wonder if the piece on the right would fit on
the piece on the left if turned upside down?


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Re: Mersey Tunnel - Core Samples [Re: Mark] #176017
1st Oct 2007 4:36pm
1st Oct 2007 4:36pm
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Moreton/Beirut/Mobile
MattLFC Offline
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Lol good photo, never seen these before for obvious reasons lol smile

Re: Mersey Tunnel - Core Samples [Re: MattLFC] #176035
1st Oct 2007 5:35pm
1st Oct 2007 5:35pm
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Me neither only learnt of them a few days ago wink


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Re: Mersey Tunnel - Core Samples [Re: Mark] #176128
1st Oct 2007 9:20pm
1st Oct 2007 9:20pm
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By core samples, you mean big lumps of rock taken from underground,where the mersey tunnel is now, to test its properties etc?


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Re: Mersey Tunnel - Core Samples [Re: Waddi] #176136
1st Oct 2007 9:34pm
1st Oct 2007 9:34pm
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Mark Offline OP

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Yehhh that's what i mean wink


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Re: Mersey Tunnel - Core Samples [Re: Mark] #176140
1st Oct 2007 9:39pm
1st Oct 2007 9:39pm
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New Ferry
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Thought so, just thought I best clarify for those that didnt know think

To be honest I originally thought you meant big steel rods that went in the ground to test it. not the actual samples taken



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Re: Mersey Tunnel - Core Samples [Re: Waddi] #176248
1st Oct 2007 10:56pm
1st Oct 2007 10:56pm
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Mark Offline OP

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First post updated thanks wink


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Re: Mersey Tunnel - Core Samples [Re: Mark] #189470
20th Dec 2007 2:36pm
20th Dec 2007 2:36pm

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Just seen the photo of the core samples. Just a little puzzled as they look a bit on the big(diameter)side for samples. I've seen quite a few core samples taken through various rocks, usually site investigation stuff. The diameter is usually about 1 1/2 to 2 inches. Brought up via the hollow drill and then laid out in special boxes to go to the lab. or be inspected on site.

The only cores of such size I've seen is when wells are sunk into water bearing rock. The diameter is large enough for an electric submersible pump to be lowered down the "shaft"

A friend of mine was a fitter at the old Co-oP dairy on Swan Hill (now a garage or similar). One of his jobs was to raise the pump up the "shaft" once a year for servicing. They had their own well, just about the same diameter as the cores in the picture.

Where was the pic. taken ??

Willing to be corrected on the above theory.. and of course ........ everyone loves a smart***e !!!

Re: Mersey Tunnel - Core Samples [Re: ] #189482
20th Dec 2007 4:58pm
20th Dec 2007 4:58pm
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shropshire
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You make a good point, Mike. I agree that they look to be about 5 or 6 feet in diameter. On checking in the book about the construction of the tunnel, the largest core sample mentioned is 6". If these are indeed from the tunnel, maybe they're from the construction of a drainage sump. Can you tell us where these are, Mark, or is it a secret?


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Re: Mersey Tunnel - Core Samples [Re: chriskay] #189483
20th Dec 2007 5:07pm
20th Dec 2007 5:07pm
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Cannock or New Brighton
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yeh id like to c um tbh smile
interestin stuff!
how long they been der since the unnel was built or sumet ?


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Re: Mersey Tunnel - Core Samples [Re: Brummy_Ben] #189513
20th Dec 2007 9:39pm
20th Dec 2007 9:39pm
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There in SHELL they have them, there is a plaque apparently
but that's on the inside of the fence side.

I'm going off what i was told on the plaque,
so i cant 100% say so. But hopefully some one may have a picture.

Where?
If you go past camel lairds, and take the rock ferry by pass
just as you leave the roundabout towards Brombrough,
the road twists left then right and then a (50)mph sign.
There on the Left of that snaky bit.

I agree they look pretty big


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Re: Mersey Tunnel - Core Samples [Re: Mark] #189593
21st Dec 2007 2:18pm
21st Dec 2007 2:18pm
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shropshire
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I've had a thought about this. We know that for the Queensway tunnel, 2 pilot headings were excavated throughout the length, to check on conditions. These were dug in the traditional manner.
When it came to the Kingsway (Wallasey) tunnel, techniques had advanced & they were not dug, but bored. Maybe these cores are pilot borings from the Wallasey tunnel.


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Re: Mersey Tunnel - Core Samples [Re: chriskay] #189679
21st Dec 2007 7:35pm
21st Dec 2007 7:35pm
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Okay i have enquired about the info.
I want to blame my source but he will blame me for getting mixed up.
At the time i guess we were talking about the Mersey Tunnels
and then core samples were mentioned.
So it was a case of 1+1=3

But they are samples from the mersey of the bed rock. smile

Hoseman below has these pinned down as he was my source lol.
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Last edited by Mark; 21st Dec 2007 7:58pm.

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