不同类型软粘土土坡在实际工程中破坏的比较

Types of failure in different soft clay slopes

本文通过对发生在天津新港和深圳妈湾港的两个不同类型的实际破坏的软粘土土坡的计算和分析 ,发现这两个土坡在破坏形式和破坏原因上都存在着差异 ,且破坏后的地形、地貌也有很大的差别 .有限元计算表明这两类土坡的应力场和位移场的分布各自具有不同的特点 ,进行土坡稳定验算也应采用不同的方法 ,这些都说明这两个土坡的破坏存在着不同的机制 .此结果不仅对工程实践具有指导作用 ,而且对研究土坡的破坏机理 。

Two failures of soft clay slopes at different harbor engineering are calculated and compared.It is found that the type of failure,causes of failure as well as the land configurations after landslide are quite different.The calculation result of FEM shows that the stress and displacement fields of different slopes have its own specialties.It demonstrates that appropriate method for slope stability analysis is important.