赵口引黄灌区兴建于70年代初期,地跨郑州、开封两市,控制面积23.5万hm~2,设计灌溉面积15.3万hm~2;远期规划可扩展至周口地区和许昌市,增加灌溉补源面积22.4万hm~2。该灌区泥沙处理采用一号沉沙池集中沉沙。该灌区一号沉沙池包括南、北两池,北池占地264hm~2,被中隔堤分为上下两区;南池占地205hm~2,因其自然沉沙容积较小,是较好的堆沙区,平面布置如图。 Zhaokou Yellow River Irrigation District was built in the early 1970s and crossed Zhengzhou and Kaifeng with a control area of ​​235,000 hm 2 and an irrigation area of ​​153,000 hm 2. The long-term planning can be extended to Zhoukou and Xuchang to increase irrigation Replenishment area of ​​224,000 hm ~ 2. The irrigated sediment treatment using a settling basin concentrated sediment. The No. 1 grit chamber in the Irrigation District consists of two pools, south and north. The north pool occupies an area of ​​264 hm ~ 2 and is divided into upper and lower zones by the septal dike. The south pool covers an area of ​​205 hm ~ 2, which is better because of its smaller natural sediment volume Heap sand area, the layout of the map.