And in the flume experiments on a silt bed in lab, it is found that some low-strength area vibrates with wave shearing action, which leads to a moisture content depression and a density increase.

• 通过波浪对粉土底床作用的水槽试验，发现强度软弱区的土体在波浪剪切作用下发生振荡运动，振荡运动后的土体含水量降低，密度增加。