3 Verbs to Use for the Word ramp

During our advance the engineers had to build ramps here.

As Robert Hart turned away from these sights and descended the ramp of the wall, he noticed a dozen little boys following him, naked urchins with uncombed hair on shoulders.

Masons and most skilful carvers in stone were busily engaged in the restoration of parts that had fallen into dangerous decayan extremely flimsy-looking scaffolding, made apparently of light bamboos, tied together in wisps, and forming a fragile-looking ramp, wound spirally up the outside of the tower.

3 Verbs to Use for the Word  ramp