What exactly is involved in building vertical earthbag walls without buttresses? Is there a safe way to build vertical walls without buttresses?
The very best design for vertical walls without buttressing is to curve them. Otherwise putting rebar vertically through the bags can help rigidify the plane of the wall, but this will not necessarily keep the entire wall from buckling or toppling. Also, the thicker the wall the more stable it will be in general. Then reinforced concrete bond beams, or wooden box beams integrally connected to the wall, especially at the top will add quite a lot of stability. Such a bonding layer could also be introduced lower down in the wall, especially with rather tall walls.
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