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对黄河三角洲东北部地区的高分辨率水声学资料进行了综合研究。根据所记录的破坏土体变形程度、运动产生的平面形状和地貌特征形态，对土体失稳过程进行分类：浅表土体变形、塌陷凹坑、滑坡和沉积物重力流。结果表明：（１）浅表土体形变的变形程度最低，出现在研究区斜坡上部平滑海底，主要为绳网状泄水构造和表层拉张裂隙。（２）塌陷凹坑在研究区内广泛出现，是局部土体液化后发生了垂直沉降的结果。（３）滑坡多发生在水下斜坡的中上部，由弧形塌陷区、狭窄的冲沟通道和负地形沉积物堆积区组成。滑坡陡坎后缘发现拉张裂隙。（４）沉积物重力流是土体发生变形程度最大，搬运距离最长的土体破坏变形形式。局部区域多次受到沉积物重力流切割和充填作用。
A comprehensive study was carried out on the high resolution water acoustics data in the northeastern Yellow River Delta region. According to the recorded deformation degree of damaged soil, the plane shape of the movement and the morphology of the landform, the instability process of soil is classified as follows: deformation of shallow soil, collapse pits, landslide and sediment gravity flow. The results show that: (1) The deformation of shallow soil is the lowest, appearing in the smooth sea bottom of the slope of the study area, mainly consisting of rope-net drainage structures and surface extension cracks. (2) Collapse pits are widely found in the study area and are the result of vertical settlement of the local soil after liquefaction. (3) The landslide mostly occurs in the middle and upper part of the underwater slope. It consists of arc-shaped subsidence area, narrow gully channel and negative terrain sediment accumulation area. Landslide scarp trailing edge of the discovery of tension cracks. (4) Sediment gravity flow is the deformation form of the soil with the largest degree of deformation and the longest moving distance. The sediment gravity flow cutting and filling has been carried out in many parts of the area.