What kind of a foundation would be needed for an underground structure?
The main issue is dealing with possible water entry into the structure; the bags create their own foundation. It may be necessary to create a French drain around the exterior at the foot of the wall, depending on soil type, water table, grading, and rainfall. Q: One portion of the wall will go straight up a hill. When laying bags on that portion (about 10 feet long), do you cut steps into the trench in order to keep the bags laying flat? It’s in the middle of a sort of C-shaped garden wall. A: In a situation like this I think that is mainly a matter of aesthetics, whether you want the top of the wall to be staggered or to have a straight incline that matches the slope of the hill. Q: Our ground is of course rocky and in places very irregular – can we make the first layer less full to accommodate for the difference in terrain or should we try to excavate a “footing” A: I would suggest digging down far enough to create a level trench to start laying your bags, and then stepping this as n
Related Questions
- What kind of foundation would be needed to support a two-story structure? Would we have to assume that the standard rebar cement foundations found in modern building techniques would be necessary?
- WHAT TYPE OF FOUNDATION IS NEEDED FOR A DESIGN/BUILD OR A PRE-ENGINEERED STEEL BUILDING?
- Why is a Foundation Incubator needed?
