Use the Schmertmann method to estimate the settlement for a foundation bearing on a sand deposit and where the following conditions apply:
• Square foundation, 2 m by 2 m, installed at a depth of 1 m
• Foundation bearing pressure, q = 200 kPa
• Soil unit weight, y = 18 kN/m3 , deep water table
Use the tabulation procedure as shown in Illustration 1. Analyze for conditions extending to a depth 2B below foundation level, using four 1-m-thick sublayers. Cone penetration resistance values (in MPa) qcare 3.0, 3.5, 5.0, and 3.5, respectively, for the four sublayers. Assume that the C2factor equals 1.
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