Author(s): Gye-Woon Choi; Young-Kyu Kim; Seong-June Byeon
Linked Author(s):
Keywords: Channel junction; Variation of channel bed; Pier scour; Maximum scour depth; Discharge ratio
Abstract: The variation of channel bed which shows the complex hydraulic characteristics at channel junction was investigated by variation of discharge ratio and location of pier. As increasing the approaching angle, the depth and influenced length of erosion is increasing but the slope of the erosion is decreased. Installed pier through cross the channel, the scour depth is deeper at the acceleration zone but other area where are both side of channel wall the scour depth is less than straight channel. Compared with the equation, 60 degree of channel junction is almost same as C. S. U. equation but as increasing the approaching angle the discrepancy between calculated and measured scour depth is bigger.
Year: 2005