A foundation 2.0 2.0 m is located at a depth of 1.5m in a clay. The saturated unit weight of the clay is 21 kN/m3 , and the characteristic undrained shear strength is 100 kPa. The foundation supports existing dead load of 1000 kN, and is subject to a variable load of 500 kN. Additional floors, which will increase the dead load acting on the foundation, are to be added to the supported structure. Determine the maximum allowable additional dead load (Qall) which can be supported by the foundation under undrained conditions if it is to satisfy EC7 at ULS. a) Draw the condition of foundation and ground. 2 b) Nc 2 c) sc 2 d) Qall for EC7 DA1a. 3 e) Qall for EC7 DA1b. 3 f) Qall for EC7 DA2. 3 g) Qall for EC7 DA3. 3 h) Maximum allowable additional dead load (Qall). 2 Total Marks 20