江苏通吕运河规划控制尺度和沿程冲淤分析

Controlling Demension of Tonglu Canal of Jiangsu and Analysis of Erosion and Siltation

设想近江侧筑闸、近海侧敞开的通吕运河经拓宽挖深，通过一维非恒定流数值计算和有关规范，确定运河规划控制尺度，并分析其沿程（全长８１．８ｋｍ）冲淤变化特性．根据小庙洪水道的历史演变和水文泥沙条件，选择蒿枝港以北３ｋｍ处新港闸附近作为通吕运河出海口岸较合适，本文对长江第二入海通道的规划设计具有一定参考价值．

On the assumption that the Tonglu canal would be widened and deepened on which a water lock would be constructed on the river side, and the canal would enter the sea, the planned and controlling dimensions of the canal are determind, and the erosion and siltation characteristics along the river (81 8 km in length) are analyzed on the basis of numerical calculation of one dimensional unsteady flow and related standards. According to the data of evolution, hydrology and sediment of the Xiaomiaohong Waterway, it is found that it would be rational to select the channel reach near the Xingang Gate as the second sea entering approach. This paper is helpful to the planning and desinging of the approach.