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(Solved): The footing of a column is 1.5 m x 1.5 m in size and is founded at a depth of 1.25 m below the groun ...


The footing of a column is 1.5 m x 1.5 m in size and is founded at a depth of 1.25 m below the ground level. The properties of the foundation soil are:

\( \mathrm{C}=0.1 \mathrm{~kg} / \mathrm{cm}^{2}, \phi=15^{\circ} \) and \( \gamma=1.75 \mathrm{~g} / \mathrm{cc} \)

1. Determine the safe load the footing can carry with a factor of safety of 2.5 when
the water table is at 0.5 m below the ground level.
2. Determine the safe load the footing can carry with a factor of safety of 2.5
when the water table is at 0.5 m below the base of the footing.

and


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To determine the safe load the footing can carry, we need to calculate the bearing capacity of the soil and then apply the factor of safety.   
    When the water table is at 0.5 m below the ground level: The total depth from the base of the footing to the ground level is 1.25 m (given). Since the water table is at 0.5 m below the ground level, the effective depth of the foundation is reduced to
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