a) Determine the size of the square footing to carry net allowable load of 295 KN, F. S. = 3. Use Terzaghi equation assuming general shear failure. 295 kN + = 35 C = 0.0 Ya = 18.15 kN/m3 1 m B 0 = 25 C = 50 kN/m2 Va = 20 kN /m3 b) A group of nine friction piles of 200 mm diameter spaced at 0.6 m transfer of a load of 400 kN into a 10 m thick clay layer with sand below. It penetrates to a depth of 7 m in the clay layer. If the clay is normally consolidated with a liquid limit of 40%, estimate the probable settlement of the pile group. Assume saturated water content is 35 %; G 2.8 and the water level is at ground level, taking y = 25 kN/m. (7) c) Discuss the construction of steel pile as a foundation for a proposed building project. AP(5) d) Discuss the concept of strip footing in foundation engineering and design.