To calculate the maximum height of the wall if no tension is allowed, we need to ensure that the resultant normal force acts within the middle third of the base. For a retaining wall, the critical con

To calculate the maximum height of the wall if no tension is allowed, we need to ensure that the resultant normal force acts within the middle third of the base. For a retaining wall, the critical condition for no tension at the heel (the side with water) is that the resultant force acts at a distance of $B/3$ from the toe (the dry side).

Let's define the parameters:

• Base of the wall, $B = 6$ m
• Density of the wall material, $\rho_w = 2400 \text{ kg/m}^3$
• Density of water, $\rho_f = 1000 \text{ kg/m}^3$
• Acceleration due to gravity, $g =