The regime of rapid flow in sharp open-channel bends is described,which shows that the flow near concave bank in sharp openchannel bends is subjected to centrifugal force and impact force.

• 为了探求急流弯道的超高及其相关的影响因素,通过对较小半径弯道急流的水流现象的描述,指出较小半径弯道凹岸水流受惯性离心力和冲击力的共同作用。