WATER RESERVOIR COUNTER FILTRATION SCREEN FORMATION METHOD Russian patent published in 1994 - IPC

FIELD: hydraulic technology. SUBSTANCE: method provides for spreading on water reservoir bottom of water-resistant film and formation of its protecting layer of ground. After film cover has been laid on water reservoir bed formation of protecting layer is made by directed deposition of soil hydraulically, using angular wash out by compact spray of three embankments, that form in plan contours of schemes of deposition in calculated intervals of space on water reservoir bed. Initial deposition of protecting layer hydraulically is exercised after formation of two adjacent schemes of deposition of soil hydraulically. EFFECT: method of counter filtration screen formation is used in hydraulic technology. 2 cl, 3 dwg