闽江南港洪塘大桥桥位河段特性分析

Characteristics analysis of Hongtang bridge location reach at south branch of Minjiang River

从水力、水文和泥沙条件、河道和断面形态、深泓线变化、河底高程变动、河道冲淤情况、上游水口水库蓄水和桥位河段内采砂等方面分析了洪塘大桥桥位河段的特性.结果显示。

The characteristics of Hongtang bridge location reach are analyzed by hydrologic and sedimentary conditions, channel and section morphology, thalweg swing regime, river bed contour fluctuations, channel erosion and deposit situations, and by the constructing Shuikou reservoir at the upper reach course and the exploiting sand at the river bed of the bridge location reach. The results show that the shape of the river section is wide and shallow and the river bed of the bridge location reach is unstable and changeable.