赣江下游多支汊河道整治工程对分流比的影响

本文在赣江下游多汊、多支河道河演分析的基础上,探索了东西河分流比的特征及规律,给出了适用于本河段天然情况分流比计算的经验公式.本河段上下游整治工程对分流比影响的试验成果表明,分流比的大小除与上游来流量大小密切相关外,还与下游整治工程有关.根据试验结果,文中还提出了本河段整治后分流比计算的经验公式.

Effect of River Regulating Wor s Downstream of Ganjiang River on Braided Discharge Ratio

On the basis of the analysis of the fluvial process of the lower braided reackes of Ganjiang River, the features and regular patterns of the bifurcation discharge ratio of the East and West anabranches are studies and an empirical formula is presented for calculation of natural bifurcation discharge ratoio of the river reach. The experimental results of the effect of river training works on the bifucation discharge ratio show that bifurcation discharge ratio is closely related to the downstream training works besides the upstream discharge. In empirical formula is presented for the calculation of the bifurcation discharge ratio with the effect of the river training works taken into consideration.