长江河口段水流挟沙力初步研究  

Preliminary study on sedimenu transport capacity at estuarine reach of Yangtze River

作　　者：项印玉[1] 孙昭华[2] 朱建荣[1] 

机构地区：[1]华东师范大学河口海岸科学研究院,上海200062 [2]武汉大学水利水电学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2007年第6期47-50,共4页Engineering Journal of Wuhan University

摘　　要：主要根据长江河口段肖山至石化下河段的水文泥沙实测资料,分析径流和潮流共同作用下的水文泥沙特性,归纳影响该区段水流挟沙力的主要因素,从而求得适用于该区段的水流挟沙力公式.经验证,计算值和实测值基本符合.比较研究河段与上下游的水流挟沙力,结果表明,肖山至徐六泾河段受径流作用为主,而白茆沙至石化下河段的潮流作用较强.The study reach of this paper is Xiaoshan to Shihuaxia, which is a part of the estuarine reach of the Yangtze River. Some analysis about characteristics of water and sediment of this reach is presented based on the field data of water and sediment. And the factors which affect the sediment transport capacity are listed. On the basis of the work above, the formula of the sediment transport capacity can be achieved. The results calculated by the formula are accord with the field data basically. Then the sediment transport capacity of the study reach is compared with its upper and lower reaches. The results show that the reach of Xiaoshan to Xuliujing is mainly controlled by runoff whereas the reach of Baimaosha to Shihuaxia is mainly controlled by tide current.

关 键 词：水流挟沙力 径流 潮流 河口段 

分 类 号：TV14[水利工程—水力学及河流动力学]