Use the Schmertmann method to estimate the settlement of a long strip-footing foundation bearing on a sand deposit where the following conditions apply: • Footing width = 1.5 m , installed at a depth...

Use the Schmertmann method to estimate the settlement of a long strip-footing foundation bearing on a sand deposit where the following conditions apply:

• Footing width = 1.5 m , installed at a depth of 1 m

• Foundation bearing pressure, q = 150 kPa

• Soil unit weight, y = 18.5 kN /m³, deep water table

Use the tabulation procedure as shown in Illustration 1. Analyze for conditions extending to a depth 4B below foundation level, using sublayers 1 m, 1 m, 2 m, and 2 m thick. Subsurface samples have been obtained using the standard penetration test (SPT), where N values of 24, 22, 29, and 36 can be used as the respective average values for the sublayers. Assume E_s
= 10N (Table 2), C₂
= 1.