What material is commonly used in slope protection methods?

The use of geotextiles and riprap in slope protection methods is a highly effective approach aimed at preventing soil erosion and stabilizing slopes. Geotextiles are synthetic fabrics that enhance soil stability and provide a barrier between the soil and external elements. They allow for water drainage while ensuring that soil particles remain in place, effectively reducing erosion.

Riprap, which consists of large stones or other durable materials, is placed along slopes to absorb energy from flowing water, thus protecting underlying soil from erosion. This combination of geotextiles and riprap not only stabilizes the slope but also manages water flow, which is critical in areas prone to heavy rainfall or runoff.

While other materials like sandbags, wooden logs, and concrete blocks may provide some level of protection, they are not as versatile or effective as geotextiles and riprap in terms of long-term soil stability and drainage capabilities. Sandbags can be labor-intensive and may not have the same durability, wooden logs can deteriorate over time and are often less effective in high-flow conditions, and concrete blocks can be cumbersome and may not conform well to the needs of variable terrain. Thus, the combination of geotextiles and riprap is widely regarded as the most effective solution