泥石流是山区沟谷中,由暴雨、冰雪融水等水源激发的、含有大量泥沙石块的特殊洪流。其特征往往突然暴发,浑浊的流体沿着陡峻的山沟前推后拥、奔腾咆哮而下,地面为之震动,山谷犹如雷鸣,在很短时间内将大量泥沙石块冲出沟外,在宽阔的堆积区横冲直撞、漫流堆积,常常给人类生命财产 Debris flow is a mountain torrent, by heavy rain, ice and snow melt water and other sources of excitation, containing a large amount of sediment and special flood. Its characteristics are often sudden outbreaks, turbid fluid pushed forward along the steep ravines, Pentium roared down, the ground was shaking, the valley is like a thunder, in a very short period of time will be a large number of sediment out of the ditch, in the ditch Broad accumulation area rampage, diffuse accumulation, often to human life and property