由暴雨、地震等引起的山体滑坡或泥石流堵塞山区河道形成堰塞湖和堰塞坝。所壅起的水量会淹没上游地区,且堰塞坝一旦溃决,所产生的洪峰将淹没下游地区。尽管阻止滑坡和堰塞坝的形成十分困难,但若有必要的信息资料可资利用的话,即可对溃坝及由此引发的洪水危害做出预测。本文研 Due to heavy rain, earthquakes and other landslides or debris flow blocked the mountain river dammed lake and dammed dam. The amount of water piled up will inundate the upstream area, and once the dam has been broken up, the resulting floodwaters will submerge the downstream areas. Although it is very difficult to prevent the landslide and the formation of the dam, it is possible to predict the dam failure and the resulting flood hazard if the necessary information is available. This article research