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小浪底水库已建成投入运用 ,黄河下游防御大洪水能力增强 ,但由于黄河下游是“地上悬河” ,现有防洪工程还不完善 ,因此防洪形势仍很严峻。主要问题有 :泥沙问题在相当长时间内难以根本解决 ,历史上形成的“地上悬河”局面将长期存在 ;下游仍有发生大洪水的可能 ;堤防质量差 ,险点隐患多 ,断面不足 ,仍有溃决的可能 ;高村以上河段控导工程不完善 ,河势尚未得到控制 ,主流游荡多变 ,“横河”和“斜河”严重危及堤防安全 ,而且已建工程标准低 ,急需加固 ;东平湖滞洪区围坝质量差 ,退水不畅 ,安全建设遗留问题较多 ;防洪非工程措施不适应防汛抢险要求。针对这些问题 ,近期防洪治理急需采取的对策是 :大力开展放淤固堤 ;加强游荡性河段的河道整治 ;进行东平湖滞洪区除险加固 ;加强滩区安全建设 ;尽快兴建沁河河口村水库 ;完善防洪非工程措施
Xiaolangdi Reservoir has been completed and put into operation, the ability to defend the floods in the lower reaches of the Yellow River has been enhanced. However, due to the “hanging over the river” in the lower reaches of the Yellow River and the inadequate flood control projects, the flood control situation is still grim. The main problems are: sediment problem is difficult to solve for a long time, the history of the formation of the “hanging river” situation will exist for a long time; the downstream there is still the possibility of a big flood; embankment poor quality, more hidden dangers, lack of cross-section , There is still the possibility of crashes. The control project of the upper reaches of the village is not perfect, the river regime has not been controlled and the mainstream is loitering. The “Yokogawa” and “Xiehe” seriously endanger the embankment safety. Reinforcement; Dongping Lake dam detention area of poor quality, poor return, safety problems left over; non-flood control measures do not meet the flood control requirements. In response to these problems, the recent flood control measures needed to be taken are: vigorously carry out silt embankment; to strengthen the wandering river courses; Dongping Lake flood detention area reinforcement; to strengthen beach area safety; as soon as possible to build Qinhehekoucun reservoir Improve flood prevention and non-engineering measures