单 位：
滨州市小开河引黄灌溉管理局;山东农业大学水利土木工程学院
关键词：
簸箕李灌区;小浪底工程;水沙变化;中值粒径;泥沙输送
摘 要：
为了研究小浪底水库运行后,黄河水沙变化对簸箕李灌区的影响。本文采用实测资料分析和理论探讨相结合的方法,分析了小浪底运行前后黄河水沙变化对簸箕李灌区引水引沙,引沙粒径,泥沙输送能力等方面的影响。研究结果表明:小浪底运行后,随黄河水含沙量的减少,簸箕李灌区引沙量明显降低,1999?2012年簸箕李灌区的平均引沙量为164万m3,相比1984?1998年小浪底运行前的301万m3,降低了45.37%。引水量与引沙量相关性明显减小。但是引沙粒径呈现逐年增加的趋势,从小浪底运行前中值粒径D50为0.0212 mm,增大到1999?2012年中值粒径D50为0.0398 mm。由此可知,小浪底运行之前,造成簸箕李灌区泥沙淤积的主要原因是引沙量的增加,而在小浪底运行之后,造成簸箕李灌区泥沙淤积的主要原因是引沙粒径D50的增大。
译 名：
The Influence of the Change of Yellow River Water and Sediment on the Bojili Irrigation District
作 者：
ZHENG Qian-kun;MAO Wei-bing;SUN Yu-xia;FU Jian-guo;YANG Qing-he;College of Hydraulic and Civil Engineering/Shandong Agricultural University;Binzhou City Xiaokaihe Yellow River Irrigation Administration;
单 位：
ZHENG Qian-kun%MAO Wei-bing%SUN Yu-xia%FU Jian-guo%YANG Qing-he%College of Hydraulic and Civil Engineering/Shandong Agricultural University%Binzhou City Xiaokaihe Yellow River Irrigation Administration
关键词：
Bojili Irrigation District;;Xiaolangdi Project;;water and sediment changes;;median grain size;;sediment transport
摘 要：
In order to study the impact of the Yellow River water and sediment variation on Bojili Irrigation District after the Xiaolangdi reservoir project was put into operation. in this paper, combination of measured data analysis and theoretical discussion is used to analyze the effects of changes in the Yellow River water and sediment before and after the operation of Xiaolangdi project on the water and sand diversion, sediment particle size, sediment transport capacity, and other aspects.Results show that after the Xiaolangdi was put into operation, with the decrease of the sediment concentration of the Yellow River, the amount of sediment diversion in the Bojili Irrigation District was significantly reduced. From 1999 to 2012, the average amount of sediment diversion in the Bojili Irrigation District was 1.64 million m3, compared with 3.01 million m3 before operation(Xiaolangdi in 1984-1998), this value decreased by 45.37%. The correlation between the amount of water diversion and the amount of sediment diversion is significantly reduced. However, the sand particle size showed an increasing trend year by year. The median particle size D50 before Xiaolangdi reservoir operation was 0.0212 mm, and it was increased to 0.398 mm in 1999. It can be seen that before the operation of Xiaolangdi project, the main cause of siltation in the irrigated area was the increase of sediment diversion. After the operation of Xiaolangdi project, the main cause of siltation in the irrigated area was the increase of the particle size D50.
