Threads that go off topic - here and other forums.

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Originally Posted by V8Ian

Do ships navigating the stretch of the English Channel, over the tunnel to France, have a weight limit?
During the design of the tunnel, was it taken into account that ships would get bigger and heavier, imposing greater stresses on the tunnel roof? [bigwhistle]

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I literally just came up from the middle of the new Sydney Metro tunnel under Sydney Sydney Harbour and I didn’t even wonder about asking a question like that.

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Originally Posted by Old Farang

You have too much time on your hands. Go play wid a truck! [thumbsupbig]

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You're right, I'm house/dog sitting and bored. [bigsad]

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Originally Posted by V8Ian

You're right, I'm house/dog sitting and bored. [bigsad]

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Well then, send an email to Archimedes, he knows all about that stuff!

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Originally Posted by cuppabillytea

Sydney Sydney Harbour

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Spent some time up Sydney way some time back, and I ain't heard of a Sydney Sydney Harbour. You folk move things along up there, don't you? Is that one of dem tunnel thingys?

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Originally Posted by Tins

Spent some time up Sydney way some time back, and I ain't heard of a Sydney Sydney Harbour. You folk move things along up there, don't you? Is that one of dem tunnel thingys?

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Hah hah. I must have been thinking it’s twice as good tonight. Yes it’s one of them tunnel thingies they’re laying the track in it.

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Originally Posted by V8Ian

Do ships navigating the stretch of the English Channel, over the tunnel to France, have a weight limit?
During the design of the tunnel, was it taken into account that ships would get bigger and heavier, imposing greater stresses on the tunnel roof? [bigwhistle]

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The area would need to be isolated for the whole mass of the ship to be concentrated there

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Originally Posted by shwza

The area would need to be isolated for the whole mass of the ship to be concentrated there

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Where the hell would you tie the lockout tag?

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Originally Posted by BradC

Where the hell would you tie the lockout tag?

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I think it has to be put on the flux capacitor.

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Originally Posted by V8Ian

Do ships navigating the stretch of the English Channel, over the tunnel to France, have a weight limit?
During the design of the tunnel, was it taken into account that ships would get bigger and heavier, imposing greater stresses on the tunnel roof? [bigwhistle]

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Of course it would have been, do you thing all those Engineers were idiots?[bighmmm] Postage stamp?


In those circumstances the Water would be free to expand sideways instead of being forced downwards. In the Canal, expansion space was limited, according to that earlier explanation.

I believe there are millions of tonnes of reclaimed "soil" over the top of the"Chunnel" over it's length. Ship's anchors (dragging or otherwise) would also be safely guarded against.

45 m thick coverage.


This is an interesting link. You tend to think the tunnel is straight? Nope, up & down like a dockyard harlot's drawers.


The Geological Society


But a good point though, I'll bring it to the attention of Trinity House at the next Board Meeting.[biggrin]

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Originally Posted by cuppabillytea

Hah hah. I must have been thinking it’s twice as good tonight. Yes it’s one of them tunnel thingies they’re laying the track in it.

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I bet you won't be walking the Ballast there cuppa. Well not easily.