METHOD OF PROTECTION BUILDING AGAINST UNDERMINING OF BANK PROTECTION STRUCTURES FOUNDATIONS Russian patent published in 2008 - IPC E02B3/04 E02B3/12 

FIELD: construction.

SUBSTANCE: invention is related to hydrotechnical construction of coast-protecting structures in washed riverbeds, canals and other structures. On dam slope bed is arranged in the form of gravel filling. Anti-piping device is laid on the bed. On top of anti-piping device in slope plates are laid, and flexible apron is connected to slope support. Flexible apron is assembled from separate beams with through openings by putting of beams on metal rods. Number of through openings should be at least two. Between beams in the process of flexible apron assembly soft washer inserts are put on for giving of higher flexibility in case of slop support foundation washing and apron descent. Metal rods are fixed to foundation of slope support. After assembly of flexible apron the structure is tightened with fastening bolts provided in the end of metal rods.

EFFECT: increase of coast-protecting structures service life, reduction of expenses for their building, increase of efficiency and reliability of coastal protection in riverbeds and canals against washing.

3 dwg