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Step ? <br />• Establish the maximum allowable strain (( Z in the finer system. <br />ALL) <br />Note: On liner support applications, it is the state of practice to apply <br />the Factor of Safety (FS) to the multiaxial rupture strain ( TR ). Typically <br />the Factor of Safety (FS) is equal to 2. <br />Z <br />TALL = R R <br />RY <br />Step 8 <br />• Determine the Tensile Strength (TR) required in a single layer of geogrid <br />to support the lining system above the yielding foundation. <br />Note: The Tensile Strength of the geogrid must be compatible with the <br />maximum allowable strain (VALL) in the Liner System. <br />Q at "ALL (From Table 2) <br />TR = 2rNr fl <br />Step 9 <br />• Determine the Long Term Allowable Design Strength (LTADS) of the <br />selected Geogrid. <br />TSTATT ALL <br />LTADS = FScR x FSn x FS,D X FSS <br />where <br />TSTATTALL = Short Term Tensile Strength (per GRI GGI) measured at <br />the maximum allowable strain (TALI.) <br />(8) <br />C <br />