兰州市新城黄河大桥桥渡冲刷计算与水文分析

Eroding Calculation and Hydrologic Analysis of Xincheng Yellow River Bridge in Lanzhou City

在查阅大量原始资料的基础上 ,分析了兰州市新城黄河大桥所在河段的水文泥沙特征 ,计算了主槽与边滩以及各个桥墩的冲刷深度 ,由此得出了较为详细的桥渡河段河床演变规律和桥渡冲刷结果 .以上结果不仅可以为旧桥的加固提供可靠的依据 ,也对兴建新桥有一定的借鉴作用 .

On the basis of consulting a vast amount of firsthand data, analyzing the character of hydrologic and silt of Xincheng Yellow River bridge, and calculating the deep of eroding. Thus, getting more detailed and accurate develops law of riverbed and erode result. It should offer a reliable basis for reinforcing old bridge, moreover, should draw lessons for building a new one.