On Thu, 19 Nov 2009 09:55:48 -0000, "Basil Jet"
wrote:

Bruce wrote:

Another is Westminster, on the same Jubilee line. As a civil
engineer, I find it a most impressive monument to below-ground civil
engineering, almost on a par with a major bridge. But I do wonder
whether such a huge (and hugely expensive) hole in the ground was
absolutely necessary.

It's supposed to be particularly bomb-proof, so maybe it is neccessary.


Interesting. Not mentioned in any of the technical articles I have
read, but that's hardly surprising.


I imagine Westminster and Canary Wharf to be the only underground stations
where a bomb could go off without even permanently deafening everyone on the
same platform.


I'm sure you're right. But if all Tube stations had to be built in
that way, we could afford only a very few of them.