What does the method of "benching" in excavation entail?

The method of "benching" in excavation involves creating horizontal steps or ledges in a slope. This technique is primarily applied to enhance safety and stability by reducing the risk of soil collapse. Each bench serves to break the slope into manageable sections, allowing for easier access and movement of equipment and personnel. Additionally, benches help to support the weight of the soil above and reduce the overall steepness of the excavation site, which can be particularly beneficial in soil types that are prone to slides or falls.

By incorporating horizontal steps, the method not only ensures a safer working environment but also assists in managing drainage, as water can be redirected away from the slope, decreasing the chances of erosion or instability.