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中文摘要：
引水入城是改善城市河网水环境的重要途径,但由于各种条件的约束,可能仍然存在流动性很小的河流.利用什么措施来增加这些流动性小的河流的流动性,再进一步又如何论证工程措施对增加水体流动的效果是重要的研究课题.本论文利用建立和验证了的河网平面二维数学模型,计算了设置并关闭和现状鸣山路江没有水闸条件下的水体流动状况,由两种情况的计算结果得到的水力要素增值及其分布图可以看出,设置并关闭水闸,当水闸关闭其他条件不变的情况下使得附近河流庙山江、西五灶江和西四灶江流速增加,水体的流动性增加明显;壅水河段仅在局部河段,且壅水很小.计算结果为工程提供了定量依据.
英文摘要：
Diversion project in the city is an important way to improve urban river water environment.For the smaller rivers with low liquidity,sluices or rubber dam projects are suggested to be conducted in proper positions to control water flow,so as to achieve the circulation of city river flow as a whole.The river-net two-dimensional mathematical model is set up and validated.The data of water flow,taking Mingshanlujiang Project for example,is tested under the circumstances of brake on and off based on the model.It proves that the engineering measures increase the water flow of weak liquidity rivers obviously,which provides quantitative basis for engineering planning.
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