The vehicle ramp on ground is an extensive load bearing element which at the same time constitutes its self-foundation. As in every other foundation, the soil condition has a fundamental importance and most of the times in ramps’ case, it is formed at least partially with embankment (polder).
The first case of a floor’s unfavourable behaviour is the subsidence (recess) of the soil under the middle of the ramp’s width and the formation of tensile stresses in the lower fibers.
[the deformations shown at the above and the following figure are presented in a large scale].
The second case of a floor’s unfavorable behavior is the subsidence of the soil under the one or the two ramp ends and the formation of tensile stresses in the upper fibers.
In these cases, the ramp must be reinforced with a double wire mesh, one placed at its lower surface and at its upper surface