Correct option is A
A
gravity retaining wall resists the lateral earth pressure by the weight of its own mass. These walls are simple in design and do not require additional reinforcement or structural support for stability. Due to their reliance on self-weight, they are most effective for lower heights, typically up to
3 meters.
For walls taller than 3 meters, the increased lateral earth pressure requires the use of more advanced designs, such as
cantilever retaining walls or
reinforced retaining walls, which provide additional stability.
Gravity retaining walls are made of materials like stone masonry, plain concrete, or precast concrete blocks, as these provide sufficient weight to counteract the lateral forces.
