Hi(gh)!

On 05.03.2013 21:41, Alain wrote:

> Things like one, two or tree steps inside a house are not uncommon, and
> some times intentional. I've also seen floors showing rather steep
> slopes, with very notable curves, and even un-planed waves about 60cm
> deep by 3~4m long (in a school built in the 60's)...

> someone in my family who lived there for about 90 years. The ground
> settled unevenly.

As you are a Canadian, I suppose you have seen these examples in the 
permafrost regions of Canada (Mackenzie, Nunavut etc.) - I have heard 
similar stories from Siberia! When the uppermost few metres of 
otherwisely permanently frozen soil thaw during summer and turn into 
soft mud, many buildings (except those built on concrete pillars 
reaching into the perennial permafrost) "float" in that mud and 
gradually distort by their own weight...

See you in Khyberspace!

Yadgar

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