岷江航道封弯走直治理的研究(上)

Regulation of Minjiang Waterway by Way of Curve Cut-off(Ⅰ)

四月氓江乐山—宜宾航道整治中,在航道封弯走直方面积累了较为丰富的经验。本文利用国内外已有的航道整治经验、理论和笔者所进行的概化模型实验研究,就航道整治的基本理论、航道封弯走直的基本条件、岷江中下游河床演变的基本特征,以及航道封弯走直治理的个别研究进行探讨,并提出几点有实用价值的结论意见。

In the regulation of Minjiang waterway, between the section from Leshan to Yibin, some rich experiences have been aecumulated on the regulation method by curve cut-off. Based on the regulation expcriences and regulation theory, both internai and external, and the modei tests carried out by the authors, this paper makes investigation on various aspeots about waterway regulation works, including fandamental principles, basie requirements of curve cut-off, essential features of river bed evolution in the lower sectioa of Minjiang river, as well as the particular study of cut-off effects, Some concluding suggestions a.re put forward in this paper.