SEAWATER INTAKE SYSTEM HAVING SUBMERGED WEIR AND ITS CONSTRUCTION METHOD

PURPOSE: A seawater intake system having a stone stack type underwater dam is provided to intake high quality sea water by filtering sea water in the sea area having ebb and flow of the tides using a stone stack type underwater dam and filter sand and to immediately solve blockage of filter pores. CONSTITUTION: A seawater intake system having a stone stack type underwater dam includes a stone stack type underwater dam(50), a water intake system(100), a filter sand(200) and a pump room box(300). The stone stack type underwater dam is installed in an intake station(2) being dug with specific depth(h) from the low tide sea level(G0) in the sea area having ebb and flow of the tides. The intake system is installed in the bottom side of the intake station. The filter sand is filled in the intake station and filters sea water to be sucked into the intake system. The pump room box is closely located with the intake system being installed in the ground level same as the sea level in the low tide and is installed to be submerged when the tide level(GH) is high. [Reference numerals] (AA) Harbor; (BB) Sea