QUESTION

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A $300 \mathrm{~mm}$ square column is supported by a $2 \mathrm{~m} \times 3 \mathrm{~m} \times 0.5 \mathrm{~m}$ thick footing carries unfactored loads shown in the figure. The unit weight of the soll and concrete are 18 $\mathrm{kN} / \mathrm{cu} . \mathrm{m}$ and $24 \mathrm{kN} / \mathrm{cu} . \mathrm{m}$, respectively. There is a surcharge load of $4 \mathrm{kPa}$ on top of the backfill due to loads induced in the ground surface. 1. What is the net foundation pressure in $\mathrm{KPa}$ at edge $\mathrm{A}$ of the footing? A. 189.3 C. 241.2 B. 210.7 D. 300 2. What is the net foundation pressure in $\mathrm{kPa}$ at edge $\mathrm{B}$ of the footing? A. 56 C. 133.3 B. 77.3 D. 210.7 3. What is the minimum requred gross allowable soil bearing capacity to carry the given loads in $\mathrm{KPa}$ ? A. 78.8 C. 233.5 B. 82.8 D. 237.5

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