LOCAL MATERIAL DAM Russian patent published in 1994 - IPC

FIELD: hydraulic engineering. SUBSTANCE: dam includes screen 1, bottom prism 2, draining prism 3 located between them and connected to downstream wall with layer of water-resistant, water-permeable material 4 laid into base of bottom prism. Draining prism may be connected to downstream wall with derivation drains and should be filed by zones with two-three water-permeable soils. Transition layer may be laid between zones of drain prism filled with different soils, under drain prism and under screen. On back of dam there can be arranged weight, protective layer and slope strengthening and on crest of dam and slope - screen and strengthening. EFFECT: reduced cost of construction of dam. 2 cl, 1 dwg