sand silt 25 m Problem #4 (22 points) Ground surface A 2.0 m x 3.0 m rectangular foundation is to be constructed at 1.0

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Sand Silt 25 M Problem 4 22 Points Ground Surface A 2 0 M X 3 0 M Rectangular Foundation Is To Be Constructed At 1 0 1 (43.8 KiB) Viewed 32 times

sand silt 25 m Problem #4 (22 points) Ground surface A 2.0 m x 3.0 m rectangular foundation is to be constructed at 1.0 m below the ground surface at the 1.7 m site shown in the figure. The foundation will support a = 16.8 kN/m column load of 2400 KN. 7.-17.5 kN/m 1. Calculate the initial effective stress in the middle of the clay layer. 2. Calculate the average stress increase in the clay 7. = 17.2 kN/m layer below the center of the foundation using "le) 7...-17.8 kN/m Clay Average stress increase within a given soil layer (between z = H, and H) below a corner" method. 16.4 kN/m 3. Sketch the e-log(o') curve and mark the initial and LL - 43 and PL - 26 Y.-17.9 kN/m final states. 4. Calculate the primary consolidation settlement of Soft rock the clay layer that will result from the load carried by the foundation. • Assume that the water table is at the ground surface and the clay layer is normally consolidated. • Use C = 0.009 (LL-10) and C=C./5 for calculating slopes of virgin compression and recompression lines. 3.5 m -1,3