JUNCTION CONNECTING EARTH DAM WITH CONCRETE STRUCTURE Russian patent published in 1994 - IPC

FIELD: hydraulic engineering. SUBSTANCE: junction connecting earth dam with concrete structure includes antifiltering diaphragms 1 and metal pipes 2 placed vertically and containing spaces to house vibration source 3. Each diaphragm 1 is water-tight connected with one side face to concrete abutment 4 and with other face - to pipe 2. Diaphragm 1 and pipes 2 are brought to bottom of water confining stratum 6. Width "a" of each diaphragm satisfy condition a<D-d/2, where D is diameter of earth cylinder of dam subject to calculated shaking with source of vibrations; d is outer diameter of metal pipe. EFFECT: reduced cost and simplified design of earth dam. 2 cl, 4 dwg