A long strip-footing foundation will be used to support a masonry bearing wall for a commercial building. The footing will be 1.5 m wide and 45 m long. The wall loading imposed onto the foundation...

A long strip-footing foundation will be used to support a masonry bearing wall for a commercial building. The footing will be 1.5 m wide and 45 m long. The wall loading imposed onto the foundation will be 200 kN per meter of wall length. Determine the vertical stress increase for points 1 m, 2 m, and 4 m below the footing center, assuming:

(a) Boussinesq conditions apply.

(b) Westergaard conditions apply