FIELD: hydraulic engineering, amelioration, draining of foundations of ground dams and unwatering of flooded territories. SUBSTANCE: proposed drainage comprises water intake tubular collector with jacket surrounding it from outside. Water intake tubular collector is linked to assembly and inspection chambers with settling tanks. Water intake tubular collector is positioned above one or several nonperforated dummy collectors for transit of drainage water. Dummy collectors are joined to assembly and inspection chambers. EFFECT: prevented possibility of clogging and silting of main water intake tubular collector. 1 cl, 3 dwg
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