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Manav Sharma

· started a discussion

· 1 Months ago

nbc (Question:1035234.0)

explain

Question:

The ultimate bearing capacity of a soil is 300 kN/m2. The depth of foundations 1m and unit weight of soil is 20 kN/m3. Choosing a factor of safety as 2.5, the net safe bearing capacity is

Options:
A)

110 kN/m2

B)

112 kN/m2

C)

80 kN/m2

D)

100.5 kN/m2

Solution:

Ans: (b)

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
By considering only shear failure, net ultimate bearing capacity is divided by certain factor of safety will give the net safe bearing capacity.
qns = qnu/ F
Where F = factor of safety

300-(20 x 1) = 280.
Net safe Bearing Capacity = 280/2.5 = 112 KN/m2.

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