Basement foundation repair
I'm fixing up a house that was originally built in 1790 (thats correct, not a typo).
There is a fieldstone foundation, that is holding up extremely well, and only needs to be repointed.
The issue I'm finding is, sometime around 1934, the dirt floor was covered with concrete. But, they dug about a foot of dirt out before adding the concrete, but didn't fill that one foot gap with concrete.
In other words, the floor is below the foundation walls, with only dirt holding up the foundation walls.
What would be the easiest way to fix this situation? The basement itself will never be more than a place for a furnace and hot water heater, as even as it stands now, there is only about 5 feet of vertical space.
Could the floor be brought up a few inches so there are not lateral forces acting upon the wall? or other ideas?