Cob: Pier system in Clay soil

[Charmaine R Taylor]

There is an AU product of anchor piers that may interest you. they are 
metal tripods that are inserted into theearth, then anchored and won't 
move...for people on post and pier this is a good idea for added 
stability, and for fencing it looks perfect.

they don't move or shift in forzen or EQ areas....go to their site

http://www.mega-anchor.com.au/

Not sure where to buy them in the USA, but maybe you can find out?

s. Charmaine  Taylor/ Taylor Publishing
http://www.dirtcheapbuilder.com
http://www.papercrete.com
PO Box 375, Cutten (Eureka) CA 95534
707-441-1632
tms at northcoast.com