长江科学院院报2011，Vol.28Issue(5)：83-86,4.
三峡工程运用初期监利河段河势变化预测
Prediction of Regime Change in Jianli Reach of Yangtze River During the Earlv Operation Stage of Three Gorges Project
张杰 1葛华1
作者信息
- 1. 长江科学院,河流研究所,武汉,430010
- 折叠
摘要
Abstract
As one of the regimes subject to dramatic changes in lower Jingjiang reach, Jianli reach is to see a more obvious erosion and deposition adjustment due to reduced release of sediment after the operation of the Three Gorges Project(TGP). In this paper, the possible erosion and deposition of riverbed and regime change in Jianli reach during the initial operation stage of TGP were computed and studied using a 2-dimensional mathematic model of flow and sediment. The study showed that the overall regime changed slightly, while there were drastic erosion and deposition of riverbed as well as deepened scour depth of the cross-section. In addition, parts of the bank section and the right edge of Wugui sandbar declined and collapsed, and the left branch of Wugui sandbar shrinked while the right branch expanded, and the point bar of new sandbar was showing a tendency of being cut-off.关键词
二维水沙数学模型/河床冲淤/河势变化Key words
2-D mathematic model of flow and sediment /erosion and deposition of riverbed /change of river regime分类
建筑与水利引用本文复制引用
张杰,葛华..三峡工程运用初期监利河段河势变化预测[J].长江科学院院报,2011,28(5):83-86,4.
