Question: A square foundation, 1.5 m wide, carries a net column load of 500 kN as shown in Figure P8.11. Determine the average stress increase beneath

A square foundation, 1.5 m wide, carries a net column load of 500 kN as shown in Figure P8.11. Determine the average stress increase beneath the center of the foundation in the clay layer:

a. Using Eq. (8.25),

b. Using Eqs. (8.26) and (8.10), and

c. Using Eqs. (8.26) and (8.15).

Figure P8.11

500 kN (net load) Sand 不 0.9 m Clay 3 m

Eq. (8.25)

500 kN (net load) Sand 0.9 m Clay 3 m

Eqs. (8.26)

Eqs. (8.10)

Eqs. (8.15)

500 kN (net load) Sand 0.9 m Clay 3 m

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