黄河河口演变与流路稳定关键技术研究  

Morphological Changes of the Yellow River Estuary and Key Technology for its Course Stabilization

作　　者：余欣[1,2] 吉祖稳[3] 王开荣[1,2] 窦身堂[1,2] 王万战 陈沈良[4] YU Xin;JI Zuwen;WANG Kairong;DOU Shentang;WANG Wanzhan;CHEN Shenliang(Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China;Key Laboratory of Yellow River Sediment of the Ministry of Water Resources,Zhengzhou 450003,China;State Key Laboratory for River Basin Water Cycle Modeling and Regulation,China Institute of Water Resources and Hydropower,Beijing 100048,China;State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200241,China)

机构地区：[1]黄河水利委员会黄河水利科学研究院,河南郑州450003 [2]水利部黄河泥沙重点实验室,河南郑州450003 [3]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100048 [4]华东师范大学河口海岸学国家重点实验室,上海200241

出　　处：《人民黄河》2020年第9期66-70,129,共6页Yellow River

基　　金：国家重点研发计划项目(2017YFC0405500)。

摘　　要：黄河河口清水沟流路清8汊河已进入流路自然演变的末期。为此,界定了出汊、改道、流路稳定及黄河河口稳定的内涵,系统分析了近期黄河河口水沙及流路、海岸的新变化,通过试验研究了尾闾河道出汊机制,综合提出出汊阈值、触发条件以及黄河河口流路稳定综合判别指标。在此基础上,预判了清水沟清8汊河的稳定性,提出近期流路安排应优先考虑北汊河。The current active Yellow River Qingshuigou estuarine course has been in the final phase of its morphological changes.It has de⁃fined the connotation of channel avulsion,estuarine course change,active course stabilization and estuarine regional stabilization.Analysis is done of the river flow and sediment load regimes and resultant morphological changes to the current course and coastal shore.Through physi⁃cal model tests,it studied the mechanism of forming branches at tail channel and comprehensively put forward modeling data that leads to the threshold value and triggering conditions for forming branches and composite index for the current course stabilization.With these,the current active course evolving is forecasted before its changing into another course.It is suggested that the next channel thread should change into the North Pass in order to stabilize the current estuarine course.

关 键 词：河口演变 海岸侵蚀 出汊机制 流路稳定指标 黄河 

分 类 号：TV856[水利工程—水利水电工程] TV147