Q4 (15 Pts). A 4 x 4 m footing is located at a depth of 1 m, in a clay layer of 9 m thick and carries a gross load of 32
Posted: Thu Apr 28, 2022 3:29 pm
Q4 (15 Pts). A 4 x 4 m footing is located at a depth of 1 m, in a clay layer of 9 m thick and carries a gross load of 3200 kN. The unit weight of the clay is 21 kN/m² and the water table is at the ground surface. Determine the maximum consolidation settlement. Note: 1. Do not consider immediate settlement and Skempton-Bjerrum correction. 2. Use two sublayers. 3. my values for different pressure ranges are as follows: Pressure Range (kPa) m, (mº/kN) 0-50 6.5 * 10 50-100 5.0 * 105 100-200 4.2 * 10 200-400 4.0 * 10% Q5 (15 Pts). A 3mx4m foundation with a depth of 5 meters will be constructed on clay layer. A total pressure of 300 kPa acts on the foundation. The dry and saturated unit weight of the clay is given as 18 kN/m² and 20 kN/m°, respectively. GWT is 2 m below the ground surface. Calculate the net foundation pressure and Factor of Safety (FS) against uplift?