Quebec, Canada: Landslide

[cds922]

http://www.cbc.ca/canada/montreal/story/2010/05/11/quebec-landslide.html

 

[cds922]

More good pictures available at the Montreal Gazette including photos of past landslides of this type.

http://www.montrealgazette.com/Gallery+Sinkhole+Jude/3013247/story.html

http://www.montrealgazette.com/Gallery+History+Landslides/3014003/story.html

 

[ecanuck]

This is obviously the famous quick clay of the St. Lawerence valley somewhat the same as the quick clays of Norway.

Any takes by any body else?

 

[dgillette]

I think that you are correct ecanuck.

The appearance of the ground is very much like earthquake-induced spreading from liquefaction. Expect similar behavior.

Aside from the slide, everything else looks so normal in the photos. It's almost bizarre - no earthquake damage, no floods, just this slide.

 

[HgTX]

Chilling.

Hg


Eng-Tips policies: faq731-376

 

[Mccoy]

A question for the canucks in the forum: are there any specific regulations for building on the Leda clay? Something like: building is not allowed above a treshold slope angle, or similar?

Or do you just trust in your good luck?