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HU99IRM1801111104"i <br />OVERTURNING ABOUT THE TOE <br />Overturning at the base is checked by assuming rotation about the front toe by the block mass, soil retained <br />on the blocks or within the reinforced zone. Allowable overturning can be defined by eccentricity (e/L) or by the ratio <br />of resisting moments divided by overturning moment (FSot). <br />Moments resisting overturning = Sum(M1 to M6) + MPav + MPgv Mr=17,117 ft-Ibs <br />Moments causing overturning = MPah + MPgh Mo =2,870 ft-Ibs <br />Factor of safety = Mr/Mo FSot =5.96 OK <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 9 js <br />