works can be divided into rigid and flexible work in relation to the different degree of stiffness that have
support operations consist of the rigid gravity walls, defined as opposed to the thrust of the embankment by weight; thicknesses are always high enough, to rotate disk around a point on the base. The walls are designed only to gravity as a function of the push on, ignoring the passive pressure due to the uncertainty that might actually occur.
The flexible retaining structures can be cantilever type, that is embedded in the soil embankments a1tezza valid for a limited type or anchored in, despite being stuck in yesterday are supported by ropes fixed to the anchors in the ground ready to try a room from the diaphragm, the latter type is adopted for the considerable height
works hoses are calculated as a function of pressure on, neglecting the friction surface-to-wall, and security is only a fraction, about 1 / 3, the passive push. The Flexible work differ from those rigid essentially the way they deform
the construction of supporting structures rigid
natural split stone dry:
of limited height (up 1.20 to 1.50 m)
good static characteristics for its permeability to water and its adaptability to possible. although modest, rustic, stone masonry
more or less square with mortar:
also works great, is now completely abandoned,
solid brick masonry: cement mortar
generally used as a binder and is also now almost abandoned, particularly because his weight by volume, favorable element the stability of the wall is not very high and therefore requires considerable thickness in the wall to be implemented;
masonry concrete casting of cement is to use more common for its relatively low cost
reinforced concrete retaining walls with a considerable height, thereby reducing their thickness; vibrato for precast concrete element: high altitudes (up to 9.00 to 10.00 m) in very limited
gabions in stone: this is enclosed in square containers closed mesh
benefits such remarkable strength for their heavy weight, high permeability and adaptability to failures
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