FIELD: construction.
SUBSTANCE: method using a draining element in the form of a hollow cylinder with a valve is that beneath the geocomposite mats a branch pipe 2 with a perforated flange 3 is laid, on which a cylindrical cap 4 with an opening is mounted. The draining element is equipped with lobe diaphragms 5 of an elastic polymeric material with weightings 6. The valve operates at Phs<Pback, where Phs is hydrostatic pressure, Pback is backwater pressure.
EFFECT: free groundwater discharge through geocomposite mats at their high standing.
3 cl, 2 dwg
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