Determine the size of the square footing at the ground level to transmit a load of 900 KN in
sand having unit weight 18 kN/m3 & = 36 (Nq = 43, Ny= 46). Factor of safety is 3.0.
Answers
The correct question may be like:
What is the size of the square base needed to support a load of 900 KN on sandy ground with a unit weight of 18 kN/m3 and a bearing capacity factor of 36 (Nq = 43, Ny = 46)? The factor of safety required is 3.0.
"The size of the square base needed to support a load of 900 KN on sandy ground is 3.75 m x 3.75 m.
Step-by-step explanation:
Given:
Load = 900 KN
Unit weight of sandy ground = 18 kN/m3
Bearing capacity factor = 36 (Nq = 43, Ny = 46)
Factor of safety required = 3.0
Formula:
Safe bearing capacity (q) = (Nq x c' x Sc) + (0.5 x B x Ny x y')
where,
Nq = bearing capacity factor
c' = effective cohesion
Sc = shape factor
B = width of the foundation
Ny = overburden correction factor
y' = effective unit weight of soil
From the given data, we can calculate the safe bearing capacity as follows:
q = (36 x 0 x 1) + (0.5 x B x 46 x 18)
900 / 3 = (0.5 x B x 46 x 18)
B = 3.75 m
Therefore, the size of the square base needed to support a load of 900 KN on sandy ground is 3.75 m x 3.75 m."
For such more question on capacity
https://brainly.com/question/13484626
#SPJ11