目前,对黄河下游简易吸泥船放淤固堤的淤土,是否会发生震动液化问题,有不同认识。那么,究竟什么是砂土的液化现象呢?被水所饱和的砂土,由于受外力(渗透、剪切、震动)的作用,突然丧失了其原来的固态,变为容易流动的液体状态,人们把这种现象,称为砂土的液化。 At present, there are different understandings on whether liquefaction will occur in the silt to be used for silt-dumping solid dike of the simple sucker in the lower Yellow River. So, what exactly is the liquefaction phenomenon of the sand? Sand saturated with water suddenly loses its original solid state due to external forces (penetration, shearing and vibration) and becomes a liquid state that is easy to flow, People call this phenomenon liquefaction of sand.