摘要
在陕西洛惠渠五洞简易盾构法施工现场进行了取样,分析了 Q1黄土的应力–应变曲线特性及物理性状,根据连续损伤力学和热力学定律,提出了 Q1 黄土的弹塑性损伤本构模型。并将模型计算结果与试验曲线进行了比较,模型验证结果表明,该模型能够较好模拟 Q1黄土的软化和剪胀性。
The stress-strain and deformation characteristics of Q1 loess of the 5th tunnel of Luohuiqu canal were researched by means of conventional tri-axial tests. And the elastoplastic damage model of Q1 loess is proposed based on the continuous damage mechanics and the law of thermodynamics. Compared the experiment curves with the computation result of this model, it is shown that the model can stimulate the softening and dilatancy characteristics of Q1 loess.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第9期1423-1426,共4页
Rock and Soil Mechanics
关键词
Q1
黄土
软化
剪胀
弹塑性
本构模型
Deformation
Elastoplasticity
Mathematical models
Stresses
Thermodynamics
Tunneling (excavation)
