ARTIFICIAL REEF Russian patent published in 2008 - IPC E02B3/06 

FIELD: hydraulic construction, particularly underwater permeable hydraulic biotechnical structures used in shallow sea and water pool zones as artificial substrate and mechanical stimulator facilitating biocenosis growth and mechanical-and-biological filter in zones characterized by increased anthropogenic load, or in emergency territories (in the case of oil, gas and oil product leakages during production and transportation) and to prevent shore structure erosion.

SUBSTANCE: artificial reef is made as three-dimensional structure including wave-permeable concrete modules grouped in several columns and rows. The concrete modules include four rectangular supports to be secured to massive reef base provided with stationary anchor connection means, which is engaged with bottom ground. Permeable concrete module is shaped as equilateral tetrahedral skeleton-type pyramid with the first rectangular base inserted in central perforated square orifice of base module. Square orifice has cross-sectional area equal to that of upper module section and dimension providing simultaneous insertion of four supports of modules adjacent in one column and one row. Base module has ground engagement supports formed on lower surface thereof. Stationary anchor connection means comprises at least two anchors connected to rope enclosing artificial reef transversal to wave propagation direction. The rope is to be tightened by tightening screws.

EFFECT: decreased material consumption and production costs, simplified assembling and disassembling, maintenance and repair, creation of conditions favorable for macrophyte, mussel and other mollusk growth, as well as for other thalassophilus settlement, possibility to change artificial reef dimensions in three directions, which provides reef production in accordance with hydrodynamic water area conditions and reef usage for shore and offshore building structure protection against erosion caused by storm waves.

2 cl, 12 dwg