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U T BLOCK, C. <br />OVERTURNING ABOUT THE TOE <br />Overturning at the base is checked by assuming rotation about the front toe by the block mass and the soil <br />retained on the blocks. Allowable overturning can be defined by eccentricity (e/L). For concrete leveling pads <br />eccentricity is.checked at the base of the pad. <br />Moments resisting eccentricity = M1 + M2 + MLvIPad <br />2600 Mr =2600 ft-Ibs <br />Moments causing eccentricity = MPah + MPq + MPgv <br />634 + 304 Mo =938 ft-Ibs <br />e = L/2 - (Mr - Mo)/ N1 <br />e=2.46/2 - (2600 - 938) /2291 <br />FSot = Mr / Mo <br />FSot =2600 / 938 <br />e =0.44 <br />e/L = 0.18 <br />FSot =2.77 <br />UltraWall 4.0.16287.0 Page 9 <br />