一、泥石流的成因 在水流中的每个砂砾因水力作用而被输送的现象叫作单个运搬。当水流中混杂着大量的泥砂时,这种混合物是以流体的形式而运动着,把这样状态的砂砾移动现象叫作集体运搬。 First, the causes of debris flow Each of the gravel flow in the water by the phenomenon of being transported as a single move. When the water is mixed with a large amount of sand and sand, the mixture moves in the form of a fluid and the gravel movement in this state is called collective transportation.