SALT VS ICE

It is known that the pillars fences and foundations, even buried, in severe winters wimobaiausy: permafrost like pushes them out of the land.
To prevent this from happening, I suggest when you install them dig in next to the depth of the pit cut of any pipe, which is then to pour large salt. The upper section of the pipe at ground level covered with clay or cover plate.

G. ANDREEV, p. Shumikhinskiy, Perm region.