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泥石流又称“石洪”。它是一种含有大量泥沙石块等固体物质,突然爆发,历时短暂,来势凶猛,具有强大破坏力的特殊洪流。是一种水和固体物质混合的两相流体。泥石流是目前世界上的自然灾害之一,泥石流活动可使公路、铁路中断,使村庄和城市淹没,严重时能致使几万人伤亡。据悉,我国是目前世界上泥石流分布最广、危害性较严重的国家之一,全国80%的省、市、区都程度不同的受到泥石流的影响。1984年5月27日。云南东川市因泥石流,就有110多人死亡。安
Debris flow, also known as “Shi Hong ”. It is a kind of special torrent containing a large amount of solid material such as sediment and rock, which suddenly broke out, which lasted for a short time, was ferocious and destructive. Is a two-phase fluid mixed with water and solid material. Debris flow is one of the natural disasters in the world at present. Debris flow activities can disrupt roads and railways and inundate villages and cities. In severe cases, tens of thousands of people can be killed or injured. It is reported that our country is one of the countries with the most extensive and dangerous hazard of debris flow in the world. About 80% of the provinces, cities and districts in the whole country are affected by the debris flow. May 27, 1984. Dongchuan City, Yunnan Province, due to debris flow, there are more than 110 people were killed. Ann