三门峡水库水沙运动的若干规律——兼论水库溯源冲刷对黄河下游河道的影响  

Some laws on flow and sediment transport in Sanmenxia Reservoir— study for effects of retrogressive erosion in reservoir on sedimentation of the Lower Yellow River

作　　者：陈建国 周文浩[2] 韩闪闪 

机构地区：[1]国际泥沙研究培训中心,北京100048 [2]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水利部水沙科学与江河治理重点实验室,北京100048

出　　处：《水利学报》2014年第10期1165-1174,共10页Journal of Hydraulic Engineering

基　　金："十二五"国家科技支撑计划课题(2012BAB02B01-3);水利公益性行业科研专项(201401002);国家国际科技合作专项资助(2014DFG72010)

摘　　要：小浪底水库的合理运用对于延长水库寿命,确保黄河下游防洪减淤、长治久安,至关重要。本文基于与小浪底水库河谷地貌、水沙运动基本相似的三门峡水库潼关以下库段和下游河道数十年的基本资料,分析了水库造床及冲淤形态、水库拦粗排细和水库泄空、溯源冲刷的特点,以及溯源冲刷本身对黄河下游河道冲淤的影响。这些对于深化认识和科学制定小浪底水库拦沙后期的运用方式是非常重要的。The Sanmenxia Reservoir was impounded in September 1960. Base on the field measured datafrom the reservoir,the mechanism of channel formation,the behaviors of transport for the coarse and finesediment are depicted. During the past decades of operation,there were three times of integrated retrogres-sive erosion happened in the reservoir. It is found that although the retrogressive erosion can regain someparts of silted volume of the reservoir,but it would seriously aggravate the deposition in the Lower YellowRiver. However,if the reservoir operation mode is improved and the collocation of the flow and sedimentload released from the reservoir is reasonable,the deposition both in the reservoir and the Lower YellowRiver would be mitigated. This is a quite important principle for planning the operation mode of the new-large reservoir,the Xiaolangdi Reservoir,in the future.

关 键 词：水库运用方式 水库淤积形态 拦粗排细 溯源冲刷 河道冲淤 

分 类 号：TV142[水利工程—水力学及河流动力学]