The foundation refers to the action and the effect of the structural elements of the building in charge of transmitting the loads of the terrain, so the foundation will be made based on it, or with elements supported by this soil, distributing themselves in such a way that they do not exceed the pressure admissible, which can admit, accept or tolerate producing zonal loads.
The foundation is the resistance of the ground that is generally less than that of the columns or walls that it will support, the contact area between the ground and the foundation will be proportionally larger than the elements supported to the structures where they have to pay attention to the construction stability that depends largely on the type of terrain.
The foundation depends especially on the mechanical characteristics of the terrain, the angle of internal reasoning, the position of the water table, which is the water that accumulates in the subsoil on an impermeable layer of existing loads.
From all these stages, the bearing capacity is calculated, which together with the homogeneity of the terrain advises to use a type of foundation or other different ones, where it is possible to use surface foundations that are less expensive and simpler to execute, when you have problems with the bearing capacity or the equality or similarity of the same is not possible to use superficial foundations where other types of foundations are valued.
In the area of superficial foundations it is more important than all in the part of the bridges, where the surface, which is the internal part of a body that is supported in the depths to ensure that it does not cause damage.
