Thread: EU lending for Crossrail
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Old September 10th 09, 09:39 AM posted to uk.railway,uk.transport.london,misc.transport.urban-transit
[email protected] boltar2003@yahoo.co.uk is offline
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Default EU lending for Crossrail
On Thu, 10 Sep 2009 00:17:02 +0100
Bruce wrote:
On Wed, 9 Sep 2009 14:20:42 +0000 (UTC), wrote:
*sigh* I hate to break this pre-GCSE news to you, but the area of the
shaft of a cylinder increases *linearly* with increasing radius, not as the
square of it so the cost of the lining will not go up like that.


But as someone with [no] experience of tunnel lining design, manufacture
and installation I can tell you with authority that the larger the
diameter of the tunnel, the thicker the lining needs to be.

There , fixed it for you.

B2003


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