摘要
通过对陕西洛惠渠五洞简易盾构法施工现场取样试验,在对试验Q1黄土的应力应变曲线特性进行分析的基础上,根据弹塑性理论提出了黄土的弹塑性软化本构模型,并将模型计算与试验结果进行比较。结果表明,该模型能够较好地模拟Q1黄土的软化和剪胀性。
In this paper,the stress-strain and deformation behaviors of Q_1 loess of the fifth tunnel of Luohuiqu were analyzed by means of conventional tri-axial tests,on the basis of analysis of the stress-strain cure behaviors,the elasto-plastical model of Q_1 is proposed based on the elasto-plastical theory.Also,the comparison of model computation with testing curves is tested.The results indicate that the model can stimulate the softening and dilatancy behaviors of Q_1 loess.
出处
《西安理工大学学报》
CAS
2004年第3期241-244,共4页
Journal of Xi'an University of Technology
关键词
Q1黄土
软化
弹塑性
本构模型
Q_1 loess
softening
elasto-plasticity
constitutive model
