END SECTION OF PRESSURE STRUCTURE FOR WATER PASSAGE Russian patent published in 2003 - IPC

FIELD: hydraulic engineering. SUBSTANCE: invention can be used in water developments as element of spillway. End section of pressure structure for water passage includes vertical water conduit of cylindrical form bordering on transit part of structure. Streamline piers are positioned radially above outlet section of vertical water conduit, beyond limits of its outlet section. Piers carry horizontal disc. Formula of invention gives relations of dimensions of disc to diameter of outlet section of vertical water conduit and to height of position of disc above it which make it possible to prevent wash-out of bottom near end section of structure. EFFECT: prevented wash-out of bottom near end section of structure. 4 dwg