Why do retaining walls need heavy stones?

Retaining walls are structures that are built to hold back soil and prevent it from eroding, sliding or collapsing. These walls are typically constructed using a variety of materials, including concrete, wood, steel, and stones. However, when it comes to the stones used for retaining walls, they must be heavy.

Here are some reasons why retaining walls need heavy stones:

1. Stability: Retaining walls need to be able to withstand the weight of the soil that they are holding back. If the stones used for the wall are too light, they may not be able to provide the necessary stability to keep the wall from collapsing.

2. Durability: Retaining walls are typically built to last for decades, if not centuries. Stones that are too soft or too light may deteriorate over time, which could compromise the structural integrity of the wall.

3. Aesthetics: Retaining walls are often built for both functional and aesthetic purposes. Heavy stones can be used to create a more visually appealing wall, as they provide a more natural and organic look.

4. Availability: Heavy stones are often readily available in many areas, making them a practical choice for retaining wall construction.

In summary, heavy stones are necessary for the construction of retaining walls because they provide the stability, durability, and aesthetics required for these structures to be effective and long-lasting.