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机构地区:[1]安徽省.水利部淮委水利科学研究院安徽省水利水资源重点实验室,安徽蚌埠233000
出 处:《水利水电技术》2010年第10期70-72,86,共4页Water Resources and Hydropower Engineering
基 金:水利部现代水利科技创新项目(XDS2007-01)
摘 要:由于采砂的影响,淮河干流蚌埠—香庙河段近期发生较为剧烈的河道变形,其中主槽变化大于滩地变化,主槽多表现为冲刷扩大;各河段滩地变化不同,部分河段滩地表现为微淤或冲淤平衡,部分河段滩地冲刷。而香庙至浮山河段与上述河段的差别较大,主要为自然演变,主槽和滩地的冲淤变化均不大,河道较稳定。实测资料分析表明淮河中游河道自然演变比较缓慢,人类活动对河道演变产生显著的影响。The severe deformation of fiver course has recently occurred in the reach from Bengbu to Xiangmiao of the main stream of Huaihe River due to the influence of the sand mining; of which the changes of the main channel are more severe than those of the floodplain, i.e. the scouring enlargements occur on most of the main channel, while various changes present on the floodplain along the reach with part of it under the status of slight deposition or equilibrium between scouring and deposition and part of it under the condition of scouring. However, the changes of the reach from Xiangmiao to Fushan are more different from those of the upstream reach. It mainly appears as the natural evolution, the variations of the erosion and deposition of the main channel and the floodplain are less and the river channel is more stable. The measured data show that the natural evolution of riv- er channel of the middle reaches of Huaihe River is slower and the human activities have significant impacts on the evolution of the river channel.
分 类 号:TV147[水利工程—水力学及河流动力学]
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