长江口深水航道的选择及其治理原则

在长期系统研究的基础上，分析对比了长江口的水流动力、泥沙运动和河床演变等各种条件，选择了北槽作为长江口深水航道先予治理，确立了符合长江口实际情况的治理原则．长江口深水航道一、二期治理工程的实施，已取得了良好的治理效果和巨大的经济效益．

Selection and training principle of the deep channel in the Yangtze Estuary

Based on long-term systematic researches, the hydrodynamic conditions, sediment transport and riverbed evolvement of the Yangtze Estuary are compared and analyzed. According to the analyses, the North Channel is selution as the main deep-water navigation channel to the sea and is to be pre-trained, and the training principle of the Yangtze Estuary is determined. The first-and second-stoge training works for the deep-water channel in the Yangtze Estuary have produced good training effects and economic benefits.