This is the old food storage house to the Church farm in my home town.
We think that because of a new road the water have found new ways and made the ground softer and some of the poles/stone stacks have sunken a bit down.
We have jacked the house up, in the middle, four stacks disassembled and done anew. We took two on the same beam line, then the next two.
We had to digg deep to get underneath the soft soil, when you get down to the lighter layer, the soil is dead and can't compress anymore. So we build from that level. Last picture is the stone stack I took down at the end of today, and will reassemble it tomorrow.
Hard work. Tight space to work under. Knees hurting.