Study on Water and Sediment Diversion Variations in Songzikou after the Three Gorges Reservoir Storage

Abstract:

Songzikou has the greatest diversion ratio among the three outlets at Jingjiang River. The water and sediment diversion ratios are changed after water storage of the Three Gorges Reservoir. The changing trends are critical for the evolution of the river-lake relationship. According to the water and sediment diversion data obtained from 2003 to 2010 in the Songzikou, it could be found that the water diversion ratios in the Songzikou under different Zhicheng flow are enhanced and its sediment diversion ratios also had an increasing trend after the Three Gorges Reservoir storage. The variations were mainly related to the water levels of main streams, the change of river regime and the diversion angle near the outlet. In addition, the changes were also associated with the evolution characteristics of outlet channel. We further studied how flood regulation of the Three Gorges Reservoir influenced the diversions of the Songzikou.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 2631-2636
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.2631
• Online since: August 2013
• Authors: Dong Wang, Yi Tian Li, Jin Yun Deng, Yun Ping Yang
• Keywords: Sediment Diversion Ratio, Songzikou, Three Gorges Reservoir, Water Diversion Ratio

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