望谟河新屯段整治效果研究

Study on Xintun Section Remediation Effect of Wangmo River

望谟河新屯段洪涝灾害频繁,为减少洪灾,需对该河段进行整治。通过建立水沙数学模型,对整治方案实施后的效果进行研究,结果表明:整治工程实施后,不同洪水条件下望谟河沿程的水位均发生同程度降低,有利于河道防洪;不同洪水条件下,D1-3至D3-1河道内,滩面流速归槽明显,工程后洪水的淹没范围较工程前减小较大,有利于行洪;整治工程实施后,河道淤积厚度大幅减小,整治效果良好。

Frequent floods and watefloging disasters in Xintun section of Wango River, in order to reduce flooding, it is required to renovate the section. Through the establishment of a mathematical model of water and sediment, the article studies the effect of the remediation plan. The results showed that： After the remediation project implemented, the water level of the Wangmou River under the different flood conditions all decreased in the same degree, which was in favor of flood control. Under different flood conditions, D1-3 to D3-1 in the river, the returning slot is obvious in the beach velocity, the flooding scope of the flood after the project is smaller than that before the project, which is good for flood control. After the remediation project implementation, the thickness of the river siltation drastically reduces and its effect is good.