摘要
在三峡库区支流大宁河流域大昌镇河段开展近岸波浪的野外观测,利用高清数码相机和标尺观测了库区水位160 m时风浪、船行波的近岸波高。采用Minitab软件对1000多组波高实测数据进行参数检验、Weibull分布拟合以及拟合优度检验,分析了近岸波浪的空间、频率特征。结果表明:由风力造成的波浪高度在0~5 cm范围内变动,且分布较均匀;船行波的高度在1~12 cm范围内变动;4组不同库岸的实测有效波高均与Weibull分布拟合较好。近岸船行波的波高集中在6~10 cm,占90%;近岸风浪波高集中在2~4 cm,占85%。该结果对三峡库区消落带的岸坡波浪侵蚀分析提供有效支撑。
This paper conducts field observations of near-shore waves in the Dachang section of the Daning River Basin,a tributary of the Three Gorges Reservoir area,observes the heights of near-shorewind and ship waves at a water level of 160 m in the reservoir area by high-definition digital cameras and rulers,carries out the parameter test,Weibull distribution fitting and goodness-of-fit test on more than 1000 sets of measured wave height data by Minitab software,and analyzes the spatial and frequency characteristics of near-shore waves.The results show that:1)The height of the waves caused by wind varies within a range of 0~5 cm,and the distribution of waves is uniform;2)The height of the ship waves varies within a range of 1~12 cm;3)The measured effective wave heights of the four groups of different banks are fit well with the Weibull distribution.The height of near-shore ship waves is mainly 6~10 cm,accounting for 90%;while that of near-shore wind waves is mainly 2~4 cm,accounting for 85%.The results provide effective support for the analysis of wave erosion on the bank slope in the water-level-fluctuating zone of the Three Gorges Reservoir area.
作者
付旭辉
王硕
唐定丹
宋媛媛
汪云悠
张逸心
杨茗
FU Xuhui;WANG Shuo;TANG Dingdan;SONG Yuanyuan;WANG Yunyou;ZHANG Yixin;YANG Ming(Key Laboratory of Ministry of Education for Water Conservancy and Transportation Engineering,Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Research Center for Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Qiujing High School,Chongqing 400015,China;Chongqing Nankai Middle School,Chongqing 400030,China)
出处
《人民珠江》
2020年第6期32-38,共7页
Pearl River
基金
重庆忠万高速公路有限公司科技项目(高速公路雨水集蓄与中央绿化带太阳能-智能化灌溉关键技术研究及其应用示范)
重庆市技术创新与应用示范专项重点研发项目(cstc2018jszx-zdyfxmX 0021-05)。
关键词
波浪要素
原型观测
波高
大宁河流域
wave element
prototype observation
wave height
Daning River Basin
