A $2\mathrm{.}3m2\mathrm{.}3m$ square footing to carry a $650kN$ load and has its base at a depth of $1m.$ The maximum allowable settlement is $2\mathrm{.}5cm.$ The footing is sitting on the sandy soil $(5m$ thick$)$ that has a unit weight of $18\mathrm{.}5k\frac{N}{m^3}$ and a saturated unit weight of $20k\frac{N}{m^3}.$ If the angle of friction of the soil is $22$ degrees and $E=40$MPa. Check if the bearing capacity and settlement is okay for the following condition:

a$)$ If the water table is at a depth of $4m$ from the ground level.

NOTE: The load is vertical and centric resting on a horizontal footing on a horizontal surface, also use a Factor of Safety of $2\mathrm{.}5.$

ANS: $Nq=7\mathrm{.}822,Sq=1\mathrm{.}404,dq=1\mathrm{.}14,$ Ngamma$=4\mathrm{.}21,$ Sgamma$=0\mathrm{.}6,$ dgamma $=1\mathrm{.}0.$

gallow $=121k\frac{N}{m^2},DH=12\mathrm{.}3m$

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