Water Calculation of Large Flow and Low Water Head Aqueduct in Hebei Segment of Beijing-Shijiazhuang in the Middle Line Project of South-to-North Water Transfer

After water cross-section determined in large flow and low water head aqueduct by designed flow and given water heads. When the flow increased,there is non-uniform flow happened in aqueduct. The designers should calculate this flow situation to determine the water surface line under the situation,to calculate wall height to protect the safety of aqueduct.