Liam
>From your statement it would appear that there would be some 20 deg change
of temperature around the pile between day and night. I have no experience
in this specific case, but following information may through some light to
investigate the effect
1 While using elector osmosis for installation of steel piles in
remoulded London clay using 12 volt dc it was noticed that considerable
electrochemical reactions were taken place around both cathodic and anodic
piles.
2 Temperature profile of in situ clay normally remain constant 2 to
3m below GL irrespective of change of season even in semiarid region.
It may be necessary to understand if there would be any ionic reaction due
to this change of temperature.
Regards
Nanda Ghosh
> -----Original Message-----
> From: LIAM BARBER [SMTP:[log in to unmask]]
> Sent: 19 June 2000 20:23
> To: engineering geotech
> Subject: effects of temperature changes on clay
>
> I would be grateful for any advice or references on the effects of small
> (<10 deg) temperature changes on clay.
> I am looking at a scheme were consideration is being given to using piles
> to
> transfer low grade heat into the clay during the day and reverse the
> process
> at night.
> The piles are necessary for carrying structural loads so I am
> particularly
> concerned that their carrying capacity is not effected.
> regards
> Liam Barber
>
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