Four columns of a building are to be located within a plot size of 10 m x 10 m. The expected load on each column is 4000 kN. Allowable bearing capacity of the soil deposit is 100 kN/m2 .what type of foundation is best suited here?

9. Consider Figure FE 3. Compute the difference in the primary consolidation settlement. Further, if foundation B is to be loaded with an additional 150 kN, suggest an increase in dimension for said foundation if a differential settlement of 20 mm is not to be exceeded. You may use the equation for primary consolidation settlement of HomvAov. 780 kN 780 kN Foundation A Foundation B 1.5 m x 1.5 m 1.5 m x 1.5 m Sand 1.4 3 m 2.8 m 1.2 m Clay, m = 0.7 m2/MN Gravel Figure FE 3-Borrowed from Soil Mechanics and Foundations, Muni Budhu

Please round to the nearest One (i.e., 1). No Comma! The results of a plate-load test in a clay soil are shown below. The size of the plate is 0.41m x 0.41m. If a square column foundation (3m x 3m) that should carry a load of 2700KN, what is the estimated settlement of the foundation? Load/unit area Settlement (KN/m²) Load/unit area (kN/m?) (mm) 200 600 800 400 200 300 6. 10 400 13 500 20 20 600 29 30 40 50 60 70 Answer = mm Next page page MacBook Air トII F1 F2 F3 F4 F5 F6 FB F9 @ #3 2$ & 2 3 4 7 8 W R Y U S D F G K Settlement (mm)

Please round to the nearest One (i.e., 1). No Comma! The results of a plate-load test in a clay soil are shown below. The size of the plate is 0.58m x 0.58m. If a square column foundation (3m x 3m) that should carry a load of 3600KN, what is the estimated settlement of the foundation? Load/unit area Settlement (KN/m²) Load/unit area (kN/m³) (mm) 200 400 600 800 200 6. 300 400 13 10 500 20 20 600 29 30 40 50 60 70 Answer = mm Settlement (mm)

It is proposed to build an 8-story building with a footprint of 20 m x 30 m, resting on a mat foundation of the same dimensions, in a saturated clay with undrained shear strength of 60 kPa. Assume approximately 12.5 kPa per floor for dead and live loads. Unit weight of soil is 18kN/m3 . a) At what depth would you place the mat to make this a fully compensated foundation?b) What would be the depth of this mat foundation for the net factor of safety of 5?c) What is the gross factor of safety for the depth determined in the answer to question b)?