IMPROVING SURFACE RUNOFF RETENTION EFFICIENCY
Purpose: improving the method for protecting slopes from water erosion to increase the efficiency of the anti-erosion structure, taking into account modern requirements for ensuring ecological regulatory compliance in the field of preventing pollution of water bodies. Materials and Methods. The basis for improving the method of protecting slopes from water erosion with the help of hydraulic structures was the well-known and author's developments of individual elements and structures of anti-erosion facilities. When generalizing and comparing technical characteristics and principles of the structure operation, the methods of comparison, analysis and synthesis were used. Results. Analysis of various materials (scientific papers, publications, patents relating to the development of methods for protecting slopes from water erosion using hydraulic structures) showed their uniformity in terms of design and the need for revision and improvement in order to increase the operation efficiency and preventing the ingress of nutrients into the water body. Some disadvantages were identified: low efficiency on difficult slopes with different steepness and relief exposure due to the “imperfection” of the trench design, the temporality of the trench backfill action due to destruction, low efficiency due to the low water-holding capacity and rapid water delivery, lack of preliminary treatment of surface waters before their discharge into a water body. The direction of improving the method of erosion control is the development of a filter tile for plastic balls. Conclusions. An improved method for protecting slopes from water erosion involves creating a trench filled with inorganic filler, with a water-retaining earthwork and a water-retaining screen. The filler has the form of a ball with eight through holes diameter of <5 mm, located in pairs and coaxially (the balls are filled with a filter tile of agroperlite by 2/3 of the volume).