FLEXIBLE CONCRETE COVER TO PROTECT COASTAL SLOPE OR BANK Russian patent published in 2013 - IPC E02B3/12 E02D17/20 

FIELD: construction.

SUBSTANCE: cover comprises concrete blocks connected to each other and in rows by means of flexible links and having a shape of double-sided truncated pyramids with a common base. The lower part of each concrete block is made in the form of a slant truncated pyramid with smaller and larger end sides to form an acute-angled ledge-tooth between the larger end side and the lower base-foot of each concrete block. Height of the smaller end side and height of the larger end side of each concrete block are set with the ratio of 1:2-1:7, accordingly, with the possibility to produce an acute angle between the larger end side and the lower base-foot of each concrete block, and this angle forms an acute-angled ledge - tooth. Concrete blocks are arranged as identical along the chosen shape of the surface of their lower base-foot and evenly aligned relative to end sides of the flexible concrete cover, having a toothed lower base. Smaller end sides of each concrete block of each row, apart from the extreme row, installed in the upper part of the slope or bank, are connected by means of flexible links with larger end sides of each overlying concrete block in the adjacent row.

EFFECT: increased strength of mechanical coupling of a flexible concrete cover with soil, which increases stability of its position on a soil coastal slope or bank of different steepness.

4 cl, 6 dwg