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Posted by Aardvark on May 12, 2007, 12:15 pm
On Sat, 12 May 2007 05:23:25 -0700, peternoon wrote:
> I have removed about 1 metre wide of "crazy paving", on a driveway, to
> install a drainage pipe under it. As the regulations say, I placed 50mm
> thick (900mm wide) concrete slabs over the pipe spanning the trench. I
> have allowed for a 30mm gap between the top of the slabs and the
> underside of the paving stones. The latter are made from broken concrete
> 50mm slabs. The existing paving is resting on a thin layer of 10mm
> gravel which in turn is resting on tarmac about 120m thick. The paving
> has mortar on the joints, fairly wide in places.
>
> My question is, in order to replace the paving stones I removed, which
> is the best technique I can use in my situation to fix them so that they
> will not rock or sink with the weight of the cars?
>
> Here is a picture of the driveway (if it works)
>
> Thanks in advance
>
> [URL=http://imageshack.us][IMG]http://img341.imageshack.us/img341/2176/
> drivewaycrazypavingxi9.jpg[/IMG][/URL]
Looking at the picture, I'm wondering two things. How wide is the trench
for the waste pipe and what is the external diameter of the pipe?
For all one can see, the 900mm flags might just be resting on 25mm of
soil on each side and the trench might be 850mm wide. Depending on the
width of the trench (if it's, say, 300mm or less) it might now be safe
just to replace the gravel and crazy paving.
--
Registered Linux User 413057.
Both Mandriva 2007 and Ubuntu 6.06
You can have it all. My empire of hurt.
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