Question

1. (8 points) A 190-k column load is to be supported on a 10-ft square, 3-ft deep spread footing underlain by young, normally consolidated sandy soils. The results of a representative CPT sounding at this site are as follows: Depth (ft) 21.0-40.0 0.0-6.0 6.0-10.0 10.0-18.0 18.0-21.0 e (kg/em2 The groundwater table is at a depth of 12 ft; the unit weight of the soil is 124 Ib/t above the groundwater table and 130 lb/ft below. Using Schmertmann's method (not the simplified S method), compute the total settlement of this footing 30 years after construction. (1 lb/ft 0000804 kg/em2, Use Es 3 g) 110 65 59 30 51 0.000 4

Answer 1

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