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Structural Concrete - Hassoun

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Problems 521<br />

the coefficient of friction between concrete and soil is 0.55 and that between soil layers is 0.6. Use<br />

f c ′ = 3ksi,andf y = 60 ksi, and an allowable soil pressure of 4 ksf.<br />

14.9 Check the adequacy of the cantilever retaining wall shown in Fig. 14.22 for both sliding and overturning<br />

conditions. Use a key of 1.5 × 1.5 ft if needed. Then determine reinforcement needed for the stem, heel,<br />

and toe, and choose adequate bars and distribution. Given: Weight of soil = 120 pcf, the angle of internal<br />

Figure 14.21<br />

Problem 14.8: Cantilever retaining wall.<br />

Figure 14.22<br />

Problem 14.9: Cantilever retaining wall.

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