摘要
据弹塑性大变形理论,在平面应变的条件下,用控制力的方法来控制边坡的收敛性,定性分析了弹性模量影响下边坡的应力、应变规律,对大变形和小变形对边坡塑性应变差异做了对比。计算结果表明:对于均质土坡,弹性模量对塑性区范围影响不大,对坡脚的沉降、水平位移有明显的影响。
The influences of the elastic modulus on the stress- strain mechanism of soil slope were analyzed,based on the elasto-plastic large deform hypotheses,under the plane strain contion,in which the force controlled- method is employed to take for the FEM analysis to simulate stress- strain mechanism of soil slope,meanwhile,the differences of plastic strain between large and small deformation were compared. Examples show that the elastic modulus has a marked effect on the settlement Uy and the horizontal displacement Ux of slope toe,but the effects on the plastic strain and plastic zone of the slope are not obvious.
出处
《铜业工程》
CAS
2014年第6期58-61,共4页
Copper Engineering