长江葛洲坝水利枢纽下游河势调整工程

River Regime Regulating Works at Lower Reach of Gezhouba Hydroproject

葛洲坝工程投运以来,二江泄洪流量被西坝凸咀挑流后,在大江产生急流横浪。针对这种不良水流条件,提出了建江心堤及疏浚二江河床的整治方案来调整大江河势,以改善大江通航条件。并进一步提高葛洲坝水利枢纽的综合效益。

Since Gezhouba Hydroproject is putinto operation,the discharge flow through Ⅱ-channel of the Yangtze River is refracted by the convex bank of Xiba which results transversal rabid current in Ⅰ-channel.For training this unfavourable flow regime,a plan based on building mid-stream dyke and dredging the river bed of Ⅱ-channel is proposed to regulate the river regime of Ⅰ-channel and to improve the navigation condition of Ⅰ-channel meanwhile further heighten the comprehensive benefit of Gezhouba Hydroproject.