数值模拟在胥浦塘深泓治理方案探讨中的应用

Application of numerical simulation to exploring river thalweg control planning of Xuputang Branch

河道深泓治理是河道整治的一个重要方面。本文通过对大泖港胥浦塘段多次地形测量数据的分析,预测河段深泓发展趋势,根据河势分析提出了短丁坝加潜坝的胥浦塘段深泓治理方案,并使用二维河流数值模型对工程方案进行计算分析,计算结果表明,工程的实施能有效遏制深泓向河道凹岸发展的趋势。

The thalweg control is an important aspect of river regulation. In this paper, the development tendency of branch Xuputang of river Damaogang is predicted by analyzing change of measured bathymetry data for different times. According to the development tendency, a plan of short spur dike coupled with underwater dike was designed to control the thalweg. A 2-D numerical model was used to analyze the effect of the administration project. The results from the numerical simu- lation show that after the project was completed, the tendency of thalweg approaching the river bank will be controlled.