长江中游赤壁—潘家湾河段燕子窝水道航道整治工程效果分析

为科学评价长江中游赤壁—潘家湾河段燕子窝水道航道整治工程的实施效果,综合分析工程实施以来河道冲淤变化、汊道分流比、航道条件及整治建筑物稳定4个方面的变化情况.结果表明:工程的实施稳定了燕子窝水道的洲滩形态和河势格局,遏制了航道不利变化趋势,左槽为主槽的地位进一步稳固,航道尺度达到了设计标准.研究成果为后续进一步提高燕子窝水道航道尺度奠定了基础,也为类似分汊河段治理积累了经验.

Effect analysis of Yanziwo waterway regulation project from Chibi to Panjiawan in middle reaches of the Yangtze River

In order to scientifically evaluate the effects of the implementation of the water channel improvement project for the Yandao waterway from Chibi to Panjiawan in the middle reaches of the Yangtze River,this paper comprehensively analyzes the variation in four aspects including the change in scour and fill,the diversion ratio of the canal,the conditions of the waterway,and the stabilization of the buildings since the implementation of the project.The analysis results show that the implementation of the project has stabilized the pattern of the continental beach and river potential of the Yanziwo waterway,curbed the trend of unfavorable changes in the fairway,and further stabilized the position of the left channel as the main channel. The waterway scale has reached the designed standard.The research result lays a foundation for further improving the channel scale of the Yanziwo waterway and accumulates experience for the management of similar branching river reaches.