The value of bearing capacity factor for cohesion, $N_{c}^{'},$ for soil as per meyerhof, is taken as

6.2

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12.0

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9.0

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5.14

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Solution

The correct option is D
5.14
The value of $N_{c}$ in Meyerhof's bearing capacity equation for shallow and deep footings is same as were given by prandtl where

$N_{c} = (N_{q} - 1) c o t ϕ . . . (i)$

This differs from Terzaghi's $N_{c}$ values and are lesser than those of Terzaghi's. $W h e n ϕ = 0,$ Such as for cohesive and saturated clays existing under undrained conditions, the value of $N_{c}$ from equation (1) becomes $\infty,$ and hence indeterminate. In such a case, the ultimate bearing capacity is to be determined by an alternate prandtl equation.

$q_{f} = 5.14 C_{u} + γ D_{f}$

The value of $N_{c}$ is thus taken as equal to 5.14 at $ϕ = 0$

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The value of bearing capacity factor for cohesion, N′c, for soil as per meyerhof, is taken as

The value of bearing capacity factor for cohesion, $N_{c}^{'},$ for soil as per meyerhof, is taken as