Tensile strength

Once the tensile forces in the reinforcements are known Ti, the armatures section b · t is determined. For metallic bars or strips with allowable stress equal with:

we have:

For geotextiles a problem that occurs in that the fabrics resistance varies from one producer to another. From available ones select one where:

(Strip length b ) ·  (resistance per width unit)  ≥ Ti

The allowable resistance used for sizing is:

The unique safety factor (FS) is the combination of: Fsjoint, Fschemical, Fsbiological, Fsenvironmental damages

FS = Fsjoint ·Fschemical ·Fsbiological ·Fsenvironmental damages