RADIAL DRAINAGE SYSTEM Russian patent published in 1994 - IPC

FIELD: construction. SUBSTANCE: drainage wells are radially arranged in the shaft. Water- receiving shafts are connected with water-collecting shaft and arranged on the higher level in relation to it. Water-removing pipes and water-lifting pump are installed in the water-collecting shaft. Suction ends of siphon water conduits are arranged in the water-receiving shafts, discharge ends being equipped with starting pumps and valves and arranged in the water-collecting shaft. EFFECT: enhanced efficiency of drainage of industrial sites and town territories. 2 dwg