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a C0RNERSTDNE <br />AL L DESIGNER <br />PULLOUT CALCULATIONS <br />Pullout is the amount of resistance of the reinforcing has to a pullout failure based on the Tmax applied and <br />the depth of embedment (resistance). In an NCMA design the failure place is defined as the Coulomb failure plane <br />which varies with face batter, backslope angle, and surcharge loads applied. All failure planes begin at the tail. of the <br />facing units. <br />For AASHTO calculations, the live load surcharge is not included in the Tmax value for pullout. <br />Failure Plane Angle (p) = 54.0 Deg <br />NOTE: The pullout capacity is limited by the Ultimate Strength of the reinforcing layer, not the ultimate pullout <br />capacity calculated. <br />F*=0.67xtan((p)=0.67x0.62=0.42 <br />Le = embedment length = Li - block depth - hi * Tan(90 - p) <br />La=Li - Le <br />sv = geogrid spacing <br />Rc = % coverage <br />a = scale effect correction <br />Pullout=2xLexF*xsvxaxRc <br />TABLE OF RESULTS <br />Elev[ ft] <br />Rc % <br />Tmax[ ppf] Ttotal[ ppf] <br />Le[ ft] <br />La[ ft] <br />TRpo[ ppf] <br />TRpos[ ppf] <br />FS PO FS SeisPO <br />6.00 <br />100 <br />58 0 <br />1.11 <br />4.89 <br />139 <br />139 <br />2.38 <br />4.00 <br />100 <br />169 0 <br />2.41 <br />3.59 <br />903 <br />903 <br />5.35 <br />2.00 <br />100 <br />234 0 <br />3.70 <br />2.30 <br />2315 <br />2315 <br />9.90 <br />0.67 <br />100 <br />180 0 <br />4.57 <br />1.43 <br />3616 <br />3616 <br />20.11 <br />Note: Calculations and quantities are for PRELIMINARY ANALYTICAL USE ONLY and MUST NOT be used for final <br />n or construction without the independent review, verification, and approval by a qualified professional engineer. , <br />CornerStone Analysis and Design 5.0.19309 12//� <br />