| 摘要: |
| 回顾了长江口治理研究工作的简要历程．扼要地介绍了国内外一些主要潮汐河口深水航道的整治经验．根据长江口的水文、泥沙及河床特征，给出了确定长江口整治河段治导线的起始断面宽度、沿程放宽率和曲率半径等主要参数的方法．提出了整治工程建筑物平面布置的一般原则和确定导堤长度和堤顶高程的依据．长江口深水航道治理工程的一、二期工程实施以来的整治段河床变化表明，本文提出的整治原理基本符合长江口地区的实际情况． |
| 关键词: 整治工程 深水航道治理 长江口 导堤 治导线 河床变化 原理 堤顶高程 泥沙 潮汐河口 |
| DOI： |
| 分类号:TV147 U617 |
| 基金项目: |
|
| Regulation principle of the Yangtze River Estuary deep channel |
|
CHEN Zhi-chang1,LE Jia-zuan2
|
| Abstract: |
| The training experiences of domestic and foreign estuaries are introduced and the regulation research for the Yangtze River Estuary is briefly reviewed. According to the hydrologic, sediment and riverbed features of the Yangtze Estuary, a method is given to determine the width of the initial section, rate of relaxing restrictions along the channel, curvature radius and other major parameters. The general principle of arranging the regulation structures is provided, along with the length and height of the guiding levee. Analyses of the riverbed change after the construction of the first and second phase regulation works show that the regulation principle presented in this paper accords with the natural state of the Yangtze Estuary. |
| Key words: tidal estuary,deep channel,regulation,Yangtze River Estuary |
