REDUNDANT SPILLWAY OF EARTH RETAINING CONSTRUCTION Russian patent published in 1995 - IPC

FIELD: hydraulic engineering. SUBSTANCE: spillway includes earth insertion 1 being washed, concrete abutments 2, taking insertion 1 apart from base dam 3. Apron consists of plate 4, walls 5, beam 6, and end section 7, and beam-type bridge, comprising concrete beams 9, lane 10 and movable bearing parts. Steps are made in abutments 2. Movable bearing parts of the beam-type bridge are placed on the steps in such a manner that faces of bridge beams 9 in summer lean against the abutments as a result of elongation of beams 9. Apron walls 5 and beams 6 are solid along their lengths, placed in the body of insertion 1 and push apart abutments 2. Ridge of insertion 1 is placed below the ridge of the base dam, and lower part of beams 9 is located over the ridge of insertion 1 to form gap 13 between them. EFFECT: high reliability. 2 cl, 3 dwg