三峡工程蓄水后荆江河势变化及整治方案研究

三峡工程蓄水运用以来,荆江局部河段河势发生了新的变化,影响了长江航运。在以往工作基础上,根据实测资料分析了荆江河段的历史演变、近期演变及三峡工程蓄水运用以来的河道冲刷和崩岸等概况。根据数学模型计算结果,预估了荆江河段的河道变化趋势,提出了荆江河段河势控制的初步方案,对沙市河弯、公安河段、石首河弯及监利河弯提出了阶段性的初步治理设想,可为荆江河势演变研究和工程治理提供参考。

Study on river regime evolution and regulation schemes for Jingjiang Reach after impoundment of TGP

The river regime of local reach of Jingjiang River has changed since the impoundment of TGP,which affects the navigation channel of the Yangtze River.On the basis of previous work,we analyze the historical and present evolutions of river regime of the Jingjiang Reach,as well as the erosion and bank collapse after impoundment of TGP according to measured data,and predict the change trend of the river regime.The regulation scheme aiming at controlling the river regime variation of the reach is proposed,and st...