摘要
对于饱和软粘土而言，仅当剪应力大于长期强度时，土体呈现出类似理想体那样的规律；而当剪应力小于长期强度时，土在恒定剪力作用下，变形逐渐趋于停止。本文应用突变理论中的尖顶突变模型，建立了软粘土流动性模型。模型变量关系式与试验数据相吻合。
This paper established a flowing rule of soft clay with the cusp catasterophe. Only when the shear stressin saturated soft clay is greater than the long一term strength,the soil obeys the ideal plastic rule. But when theshear stress is smaller than the long一term strength the deformation of the soil decays gradually under a constantshear stress. A“γ-τ-t”relation with the cusp catastrophe model is proposed which agrees with the test data.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1995年第4期67-70,共4页
Chinese Journal of Geotechnical Engineering
关键词
饱和软粘土
尖顶突变
变形速率
soft clay,cusp catastrophe,rate of deformation.
