摘要
将土的三轴剪切试验测得的应力-应变关系分为硬化和峰值后软化两种类型,提出可以统一表示这两种类型的数学表达式以及阐述了表达式中参数的意义,对杭州粘性土在该表达式的基础上结合考虑前期固结压力pc,初步提出了一个能反映转型现象的应力-应变关系表达式,并指出应力-应变关系的初始切线模量应与前期固结压力PC有关。
The stress-strain relationship of soil established from triaxial shear test is distinguished into two kinds--hardening type and post-peak softening type. A unified mathematical expression is presented todescribe the two types of stress-strain relatiomhip and the meaning of parameters in the expression is given. Then based on the stress-strain relatiomhip and considering the preconsolidafion pressure Pc a combined model for describing the pattern transition in stress-strain relafiom of clayin Hangzhou is schematically suggested. And point out that initial tangential modulus is relative to the preconsolidafion pressure Pc.
出处
《低温建筑技术》
2006年第1期57-59,共3页
Low Temperature Architecture Technology
关键词
应力-应变关系
硬化
软化
转型
stress-straln relations
hardening
softening
pattern transition
