A concrete dam has the cross-section shown in fig. Determine the maximum and minimum stresses at the base of the dam (section m-n). The concrete density=24 kN/m^3 and unit weight of water γw = 9.81 kN/m^3. Consider the length of the dam as 1 m. Draw the Stress Distribution Diagram at the Dam Base.

Length of Dam = 1 m

$\gamma_w = 9.81 \ KN/m^3$

$\gamma_c = 24 \ KN/m^3$

1] Total water pressure load (P).

2] Self weight of Dam = $\gamma_c \times Volume \ of \ concrete$

$W_2 = 24 \times (\frac{1}{2} \times 1 \times 25) \times 1 = 300 \ KN$ …