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本文根据塔里木河蜿蜒性河流的输沙特点,通过实际研究和理论分析,对在平原缓坡地形条件下无坝引水水力冲刷悬移质泥沙的处理提出了一种经济有效的方法。本方法的特点是采用双条渠引水,长距离输沙,利用河流的弯道来取得足够的冲沙水头,立体交叉排沙。文中对采用此法时的枢纽布置、设计和运用方式等均做了详细介绍。实践证明,采用这种方法既达到了引水冲沙的目的,又具有造价低和运行管理方便等优点。
Based on the characteristics of sediment transport in the meandering rivers of the Tarim River, this paper presents a cost-effective method for the treatment of suspended sediment by hydraulic dredging with no dam diversion under the gentle slope topography of plain due to the actual research and theoretical analysis. This method is characterized by double channel diversion, long distance sand transport, the use of the river bend to get enough flushing sand head, three-dimensional cross-sand. The article adopts the method when the hub layout, design and use of methods are described in detail. Practice has proved that this method not only achieves the purpose of diversion and sediment flushing, but also has the advantages of low cost and convenient operation and management.