A concrete dam holds 10 m of static water as shown in the figure (not drawn to the scale). The uplift is assumed to vary linearly from full hydrostatic head at the heel, to zero at the toe of dam. The coefficient of friction between the dam and foundation soil is 0.45. Specific weights of concrete and water are 24 $k N / m^{3}$ and 9.81 $k N / m^{3}$ , respectively.

For NO sliding condition, the required minimum base width B (in m, round off to two decimal places) is

10 m

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12 m

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16 m

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9 m

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Solution

The correct option is D 9 m
For no sliding condition

$B = \frac{H}{μ (G_{c} - C)}$

$B = \frac{10}{0.45 (\frac{24}{9.81} - 1)}$

B = 15.363 m

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The correct option is D 9 mFor no sliding condition B=Hμ(Gc−C) B=100.45(249.81−1) B = 15.363 m

The correct option is D 9 m
For no sliding condition

$B = \frac{H}{μ (G_{c} - C)}$

$B = \frac{10}{0.45 (\frac{24}{9.81} - 1)}$

B = 15.363 m