concave bank

基本解释

The external cause is the mother current scouring the concave bank and the lateral circulation scouring the curved river channel.
凹岸部位主流线的顶冲和弯曲河道横向环流的侧蚀，是决口的外部因素；
Therefore, the scheme of four cages that are disposed on the side of concave bank is the last scheme according to the practical engineering problem.
因此，针对所要解决的工程实际问题，决定采用紧靠凹岸布置四道斜底槛的方式作为最终的消减急流冲击波方案。
The results reveal that after the impounding, Tunaozi Shoal transformed basically from convex-bank entrenched meander to shallow broad river, and will further develop to a concave-bank deep channel.
分析表明，蓄水后土脑子河段已基本完成由凸岸深切河曲向宽浅河曲变化的过程，将会进一步转化为凹岸深槽的河曲。