泥沙研究2025，Vol.50Issue(6)：61-68,8.DOI:10.16239/j.cnki.0468-155x.2025.06.009
珠江口凫洲水道地貌演变的影响因素研究
Study on the influencing factors of the morphological evolution of Fuzhou waterway in the Pearl River Estuary
摘要
Abstract
Fuzhou waterway,connecting Humen,Jiaomen and Lingding Bay,is an important flood discharge and navigation channel of the Pearl River.Its morphological evolution is crucial for the safety of flood dis-charge and navigation.Through comparing the marine charts of the Fuzhou waterway,it is found that the thal-weg remained stable from 1954 to 1964,while with notable oscillations from 1964 to 1980.A series of physical experiments with movable bed were carried out to study the morphodynamic mechanism of the thalweg oscilla-tion and the corresponding influencing factors.The results show that the morphology of the Fuzhou waterway is more sensitive to the flow conditions in Humen and Jiaomen.The larger the flow velocity,the more obvious the oscillation of the thalweg,the increase of water depth and an existence of emerged rock island are favor for a rapid morphological evolution ratio.The oscillation of thalweg of Fuzhou waterway is mainly caused by the de-crease of water level and the increase of flow velocity near Jiaomen,which induced by the construction of water gates at the upstream of the Pearl River.关键词
珠江口/凫洲水道/地貌演变/深泓线/动床物理模型Key words
Pearl River Estuary/Fuzhou waterway/morphological evolution/thalweg/physical model of mova-ble bed分类
建筑与水利引用本文复制引用
苏敏,俞栋辉,姚鹏,马创业,任磊..珠江口凫洲水道地貌演变的影响因素研究[J].泥沙研究,2025,50(6):61-68,8.基金项目
国家重点研发计划项目(2023YFC3008100) （2023YFC3008100）
国家自然科学基金面上项目(42476166) （42476166）
中央高校业务费项目(B230201046) （B230201046）
江苏省自然资源科技创新项目(JSZRKJ202402) （JSZRKJ202402）
自然资源部海洋空间资源管理技术重点实验室开放基金项目(KF-2023-106) （KF-2023-106）
河海大学水灾害防御全国重点实验室开放基金"一带一路"水与可持续发展科技基金资助项目(2022491711) （2022491711）
