Vertical and horizontal strip spacing in the reinforcement is calculated like in figure above.
This does not apply if the reinforcement is realized with metallic nets or with geotextile sheets, that have fixed horizontal spacing. The vertical spacing can vary approximately from 0.2 to 1 m while the horizontal one it is approximately between 0.8 and 1 m.
The analysis refers to a unit width segment, to which is associated the horizontal pressure diagram.
Schematic representation of the arrangement of reinforcements and relative spacing
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