中文摘要：

通过青岛市唐岛湾沿岸7个实验工区的考察测试,对现代泥质沉积物水下收缩裂隙的开裂规律进行了详细研究,并且建立了相应的地质演化模型。研究认为：水下收缩裂隙开裂方式主要有3种：分别为单边开裂式、双边汇合开裂式和底界中心开裂式;裂隙发育过程中的分叉角度最多为90°,其次为120°;沙泥质地层中的“异常高压作用”（形成机理与大地构造中的异常高压相似）对裂隙开裂具有积极作用。

英文摘要：

By the observation of seven work areas in the coastland of Tangdao Bay, Qingdao, the cracking rules of subaqueous shrinkage cracks in present muddy sediments are researched, and the geologic evolutional model is also established. The results show that （1） Three cracking patterns are as unilateral cracking pattern, bilateral intersectional pattern and central dispersed pattern, respectively. （2） The angle of crack growth is mostly 90° and next 120°. （3） The abnormal pressure action in sand-mud layer plays an important role in cracking, and the forming mechanism of abnormal pressure is similar to the one in the geotectonic framework.