采用资料收集整理和整体定床、动床物理模型以及概化水槽试验的综合技术手段,研究了八卦洲汉道的河床演变情况、洲头导流堤平面布置方案及其防护措施、导流堤的结构型式等关键问题。收集整理了八卦洲汊道段多年地形及水沙资料,理清了该段河道存在的问题及其治理思路。建立了八卦洲汊道段整体定床河工物理模型,研究了洲头导流堤平面布置方案。建立了八卦洲汊道段整体动床河工物理模型,研究了洲头导流堤工程实施后局部 This paper studies the river bed evolution, the layout plan of Chaotou diversion dike and its protective measures by means of data collection and consolidation, integrated bed fixing and dynamic bed physical model as well as general technical means of generalized tank test. The structural type and other key issues. Collecting and collecting the information of terrain, sediment and sediment of Baguazhoudao section for many years and clarifying the existing problems of the section of the river and its treatment ideas. The physical model of river bed fixing work of Bagua Chau Road was established and the plan of layout of Chaotou diversion dike was studied. Established the whole Bagua Chau Road section of the movable bed river physical model, the study of the first head diversion dike after the implementation of local