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长江中下游边滩泥沙运动特性初探

Study on the sand movement of side bank on the middle and back reaches of Yangtse River

中文摘要英文摘要

在长江中下游平原河流中,许多河道都具有滩地伴随深槽的复式河槽。边滩就是具有复式断面特征并且依附于岸边的低矮滩体,是河道内中枯水流动的依托边界。三峡枢纽运行后,上游来沙量减少,长江中下游边滩的稳定性受到威胁。本文以长江中游马家咀水道、周天河段航道整治工程对依托工程,鉴于本试验主要研究边滩上护滩建筑物的模拟技术,所以仅根据形态相似对边滩概化为8种滩型,以滩型7、8为试验滩型,利用水槽动床试验进行观察比较,总结了泥沙运动的输移路线及无护滩带下滩体的冲淤情况,在淹没与非淹没两种情况下,对滩体周围的泥沙运动特性进行探索。

here are many compound channels which have bottomland with deep flume in the plain rivers of middle and downstream in Yangtse River. Side banks are the low one attach to the bank which have compound characteristics. They are support boundary of flow in the river channel. After SanXia Hinge working, the stability of the side banks are threatened by the less sands coming from the upriver. This article based on the renovation engineering of Majiazu and Zhoutian channel. Whereas the simulation technology of side bank construction protection, the shape of side banks sum up to 8 kinds. Based on kind 7and 8, movement experiments were made to summarize the sands movement line and the bottomland circumstances. Characteristics of sand movement around the side bank would be observed by using flume experiment in two conditions of flood and non-flood.

盛佳珺、韩怀柱

治河工程、防洪工程水利工程基础科学水工勘测、水工设计

边滩复式断面泥沙运动

side bank compound channelsand movement

盛佳珺,韩怀柱.长江中下游边滩泥沙运动特性初探[EB/OL].(2009-02-05)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/200902-141.点此复制

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