【摘要】 在平原多沙河流上修建引水枢纽,缺乏较系统完整的经验和指导原则.本文分析对比黄河后套平原三盛公枢纽及黄河下游平原位山枢纽等有关实测资料,试图对平原多沙河流低水头枢纽工程的卡水影响、冲刷枢纽库区淤积泥沙的措施和保持长期使用库容的经验,以及枢纽引水弯道和壅水沉沙的作用等问题进行初步探讨.更多还原

【Abstract】 In the construction of barrage diversion works on alluvial rivers with heavy sediment load, complete systematic experience and design criteria are still lacking. In this paper, based on the analysis and comparison of the field data observed from the Sanshenggong Irrigation Project of the Hetao Plain on the Upper Yellow River and the Weishan Barrage Diversion Works on the alluvial plain of the Lower Yellow River, the adopted measures and its successful points of silt disposal in the Sanshenggong Project are summarized, the sediment problems caused by barrages on the Lower Yellow River are analysed. Furthermore, the following topics are investigated in this paper, the backwater effect caused by barrages and the extension of sedimentation upstream, the means of silt flushing and the experience of maintaining the long-term reservoir capacity, the comparison of the function of the artificial bend upstream and the effect of using the reservoir as a settling basin for the prevention of sand from entering the intake.更多还原