摘要
本文采用河道平面二维水流数学模型对西江大桥河段水流运动以及扩建工程对防洪航运的影响进行了数值模拟和计算。研究结果表明 ,扩建后桥址上游河段最大壅水高度为 0 .0 8m左右 ,桥址河段水流流态及水流流速分布无明显变化 。
The paper does the analogue and calculation of numerical values in the water flow movement of the river sector of Xijiang Bridge as well as the influence of the enlargement project on the flood-control and shipping by the mathematical model of the two-dimensional water flow of the river course plane. The results of the study show that the maximum height of the dammed water for the river sector of the upper reaches at the bridge site after the enlargement is about 0.08m. And the flowing state of the water flow and the distribution of the water flow velocity of the river sector at the bridge site have no obvious change, so they have no greater influence on the flood-control and shipping.
出处
《城市道桥与防洪》
2003年第1期49-53,共5页
Urban Roads Bridges & Flood Control
