摘要
赣江是长江水系中的第二大支流 ,它发源于闽赣交界的武夷山区 ,其主支流—西支在永修县吴城镇注入鄱阳湖 ,再经星子湖口入长江。介绍了赣江尾闾地区南昌段的水系特点和水文泥沙基本情况 ,对 1987～ 1992年四级航道整治后南昌段东西河分流处的河床演变进行了分析 ,并探讨了其变化的原因 ,着重分析了东西河分流比随上游来流量而变化的原因和对策 ;对赣江主航道—西河进口的两个浅滩的变化进行了分析。赣江南昌至吴城段河面宽阔 ,比降平缓 ,来水量丰富 ,含沙量很小 ,具有发展水运的优越条件 ,赣江南昌—湖口航道整治成为三级航道是完全有可能的。
The Ganjiang river is the second largest tributary of the Yangtze river, originating from Wuyi Mountains in the border area of Jiangxi and Fujian provinces, its main distributary-the west river flows into the Poyang lake at Wucheng town of Yongxiu county and it flows out to the Yangtze river at the lake outlet in Xingzhi county. This paper presents the characteristics of the river system and general condition of hydrology and sedimentation in the tail area of the Ganjiang river and analyses the river channel evolution of the east distributary bifurcation section at Nanchang stretch of the Ganjiang river after Ⅳ grade river channel regulation during 1987～1992 and probes into the evolution cause, emphasizing the analysis of the changing discharge ratio between the east and west distributaries of the Ganjiang river along with the coming flow from upstream with respect to its cause and countermeasures as well as the variation of 2 shallow shoals at the inlet of the west distributary, which is the main navigation channel of Ganjiang river. From the city of Nanchang to the town of Wucheng, the Ganjiang river is wide with gentle water surface slope, abundant water inflow and low sediment content, possessing favourable navigation condition. It is quite possible to regulate the river channel from the Nanchang city to the outlet of the Poyang lake to become Ⅲ grade navigation channel.
出处
《人民长江》
北大核心
2002年第4期10-12,共3页
Yangtze River
关键词
河床演变
航道整治
水文泥沙特性
赣江
river bed evolution
navigation channel regulation
characteristics of hydrology and sediment
Ganjiang river
