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3. The the dam shown in the figure is loaded by its weight and the water pressure. Examine a segment of the dam with length 1=2m! V -- af Kth )( = 12,88 m? a=2.3 m k=0.6 m h= 2.2 m Ydam = 23 kN/m = 10 kN/m Y h Water + + a) Determine the internal forces arising on the contact surface between the dam and the soil! N= 8u = cha 2 b) Find the maximum value of the normal stresses arising on the contact surface between the dam and the soil, if the soil is considered to be able to resist only compression. c) Prepare the diagram of normal stresses arising on the contact surface.