2 3. For a cohesive-frictional soil with unit weight, gamma =17k(N)/(m^(3)), soil cohesion, c^(')=10kPa, friction angle, phi ^(')=30 deg , the strip foundation is 3 m wide. A vertical design load P of 300 kN and a moment, M_(B) of 60 kNm per m of the foundation length are applied at the central location of the strip foundation. The soil-foundatio solutionspile.com

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2 3. For a cohesive-frictional soil with unit weight,

\gamma =17k(N)/(m^(3))

, soil cohesion,

c^(')=10kPa

, friction angle,

\phi ^(')=30\deg

, the strip foundation is 3 m wide. A vertical design load P of 300 kN and a moment,

M_(B)

of 60 kNm per m of the foundation length are applied at the central location of the strip foundation. The soil-foundation interface is perfectly smooth. The strip foundation is embedded at a depth,

D_(f)

of 2 m . The groundwater table is deep, and its effects can be ignored. Determine the ultimate bearing load,

Q_(u)

of the strip foundation. 20marks Note:

F_(\phi d)=1+2tan\phi ^(')(1-sin\phi )^(2)(D_(f))/(B)
F_(cd)=F_(\alpha d)-(1-F_(\phi d))/(N_(c)tan\phi )
F_(xd)=1

All other correction factors equal to 1

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(Solved): 2 3. For a cohesive-frictional soil with unit weight, \gamma =17k(N)/(m^(3)), soil cohesion, c^(')=1 ...

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