Erosion is the physical and chemical phenomenon that occurs by the disruption of the Earth’s surface under the action of the atmospheric agents such as wind water , ice etc.
Water erosion exposes the soil to landslides and can therefore cause hydrogeological risk increase.
It is therefore necessary to take measures to prevent these phenomena. These measures are implemented through activities aimed at controlling erosion.
Bearing in mind that erosive phenomena occur when the soil undergoes a deformation action that originates compression and traction stresses, soil stability will be maintained by providing friction-resistant forces by reinforcing the soil with elastic elements.
Recent technology has led to the development of geosynthetic products (SINMAT) located within the soil (generally in the direction in which the deformations of the soil itself develop), which de facto constitute an armor which causes the traction forces to be absorbed from the geosynthetic rather than from the ground.
1. Both upstream and downstream the slope realize an anchoring trench with trapezoidal shape and 0,50 m width and 0,50 m depth.
2. Regularize the slope.
3. Place the geomat rolls along the side of the slope; let the geomat fold back inside the trench upstream and fix it inside by means of iron U-shaped pegs with 8 mm diameter and 10-12 cm length.
4. Fill the trench with coarse gravel and blocks.
5. Unwind the geomat rolls along the slope by fixing the geomat by means of iron U-shaped pegs with 8 mm diameter and 10-12 cm length, placed each 1 – 1,5 m.
6. Let the geomat finish inside the trench downstream, which must be filled with coarse gravel and blocks.
7. Cover all the geomat along the slope with soil.
After covering the geomat it possible to go on with sowing.
