FIELD: instrument making.
SUBSTANCE: device is installed on a discharge slope 5 of a sand beach perpendicularly to an arriving wave. The device comprises a cylindrical shell 1 and paired retaining walls. The cylindrical shell 1 is arranged from a fabric material and is filled with water 6. Closed strips 2 of fabric material are put onto the cylindrical shell 1 with the interval along its length. The diametre of the closed strip 2 is selected with account of the possibility to form two retaining walls of the specified height. Paired retaining walls are arranged at the opposite sides of the cylindrical shell 1 on the inner surface of closed strips 2. Retaining walls are made of bags 9 filled with beach soil. Sides of closed strip 2 parts are made with aprons 3. Retaining walls are pressed at sides with the help of aprons 3 and ties 4.
EFFECT: higher reliability of device fixation on a discharge slope of a beach.
2 dwg
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