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出 处:《人民黄河》2008年第7期1-2,24,共3页Yellow River
基 金:黄河水利科学研究院科技发展基金资助项目(黄科发200604号);"十一五"国家科技支撑计划项目(2006BAB06B08-09)
摘 要:讨论了黄河下游调水调沙、束水输沙及河道整治问题,认为:充分利用黄河窄深河槽在洪水期具有的输沙潜力和泄洪能力这一天然特性,将成为治理下游河道的主攻方向;在"拦、排、调、放、挖"各项措施中,"调"是核心,是关键;小浪底水库调水调沙的主要任务是把泥沙尽量调节到丰水年洪水期输送,河道整治的任务是通过双岸整治,防止清水冲刷河槽展宽,稳定主槽,控导河势,提高游荡型河道的输沙效率,形成顺直、归顺的排洪输沙通道;洪水输沙、水库多年调沙与束水输沙相互配合,是实现黄河下游河槽不抬高的必要条件。It discusses the issues of a regulated discharge,confinement of flow for sediment transport and river training of the lower Yellow River and considers that to fully utilize the natural characteristic of potentiality of sediment transport and flood discharge capacity of narrow and deep channel of the Yellow River during flood season will be the main direction of attack for harnessing the lower channel;among each measure of 'retention,regulation,warping,sluicing and excavation','regulation' is the key measure.The main task of a regulated discharge conducted by the Xiaolangdi Reservoir is to regulate and transport sediment during flood season of a wet year.The task of river training is to prevent clear water scouring and channel widening,stabilize the main channel,control river regime,increase the efficiency of sediment transport of meandering channel and form a straight and smooth channel of sluicing and sediment transport through both-side bank regulation.Mutual cooperation of sediment transport by floods,long-period storage reservoir and confinement of flow is an essential condition for achieving no increase of the lower channel of the Yellow River.
分 类 号:P333[天文地球—水文科学] TV81[水利工程—水文学及水资源]
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