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水库滑坡高速入水激起的涌浪是一种严重的次生灾害,直接威胁到航行船只和沿岸居民生命财产安全,甚至波及上下游拦河坝,造成巨大的经济损失。以某水库滑坡为例,运用潘家铮滑速和涌浪计算方法,计算了滑坡下滑过程中各条块的加速度、速度,预测滑坡体在暴雨工况下的滑动速度、滑坡体滑入江中激起对岸浪高和下坝址处浪高。结果表明该滑坡最大滑速为21.525 9 m/s,在滑坡对岸引起的浪高达27.96 m,在下游坝址引起的最大浪高达2.728 m。涌浪灾害严重,计算结果为其防灾减灾工作提供了科学依据。
The surge caused by high-speed water influx into the reservoir landslides is a serious secondary disaster, which directly threatens the lives and property of sailing vessels and coastal residents and even affects upstream and downstream dams, resulting in enormous economic losses. Taking a reservoir landslide as an example, the acceleration and velocity of each block in the process of landslide sliding are calculated by using the calculation method of sliding speed and swell of Pan Jiazheng. The sliding speed of the landslide body under the rainstorm condition is predicted. When the landslide body slides into the river, The other side of the wave height and dam site at the wave height. The results show that the maximum slip speed of the landslide is 21.525 9 m / s, the wave height on the opposite side of the landslide is 27.96 m, and the maximum wave at the downstream dam site is as high as 2.728 m. Surge waves are serious and the calculation results provide a scientific basis for their disaster prevention and mitigation work.