DEVICE TO PROTECT SAND BEACHES AGAINST WASHING OUT BY BREAKING WAVES Russian patent published in 2012 - IPC E02B3/04 E02B3/06 

FIELD: construction.

SUBSTANCE: device is arranged on an upstream slope 1 of a sand beach 2, inclined to a horizon at the angle a. The device comprises a protective shell 3 and support elements 4 and 5. The protective shell 3 is made of fabric materials in the form of a light closed cylinder. The fabric protective shell 3 is filled by water 6 and air 7. Support elements 4 and 5 are fixed to each other and made of separate hollow units filled with water 6. Height of units is selected as at least 0.7r, where r is a radius of the protective shell 3. The design of each unit comprises facilities, making it possible to open it, fill the tank with water and close. Side surfaces of each unit are arranged with arc indents to increase the area of the protective shell support as it is rolling.

EFFECT: device makes it possible to increase reliability of shell fixation on an upstream beach slope.

2 dwg