摘要
稳定主槽是当前黄河下游河道治理的关键。调水调沙不仅是塑造中水河槽的需要,更是长期维持中水河槽的需要。只有不淤积的中水河槽,才是能够长期维持的,整治主槽、调整改善主槽形态,是提高主槽输沙能力、长期维持中水河槽的需要。窄深河槽具有很强的泄洪能力与输沙能力,是主槽整治追求的目标。主槽过流能力与主槽整治流量是两个不同的概念,在今后的主槽整治工作中应明确区分。微弯型整治以控导河势流路为目标,难以达到塑造并长期维持中水河槽的目的。双岸整治以整治主槽为主攻方向,应予以正面对待并给予足够重视。黄河下游主槽整治要大力开展不抢险结构坝的研究和实践水平。
Stablizing the main channel is one of the most important issues in training the lower Yellow River. Among many training measures, the regulation of flow and sediment is the most important way to shape and maintain the medium-size channel which has a good ability to transport flood and sediment. To maintain the medium-size channel for a long period, regulating and improving channel shape as well as some training projects should also be taken into account. The narrow-deep channel should become the main target of river training because it has better capability to transport flow and sediment. Flow-conyeying capacity and the regulation discharge are the different concepts and should be differentiated. The training aim of slight curving reaches is to control and guide the river course not to long maintain a medium-size channel. The two-side bank training should be seriously considered and put into practice. In addition, the study and use of the structural embankment without need of dealing with an emergency should be enhanced.
出处
《泥沙研究》
CSCD
北大核心
2007年第5期42-47,共6页
Journal of Sediment Research
关键词
窄深河槽
主槽整治
调水调沙
黄河下游
narrow and deep channel
training of the main channel
regulation of flow and sediment
the LowerYellow River
