应力与应变研究在宝塔滑坡防治工程中的应用

Application of StressStrain Stusy to

：斜坡变形乃至破坏是一个动态的地质力学过程，这个过程是应力～位移关系控制的大变形过程和由应力与应变状态控制的小变形过程。宝塔滑坡除具有不变形特征外，还兼有弹性、弹塑性和流变性等小变形特征。本文通过建立宝塔滑坡复活变形机制的“概念模型”，运用可变形块体离散单元法进行数值模拟，通过对模型的时间延拓，获得对地质体演化的认识，达到预测和防治方案优化的目的。

It is of importance to understand the deformation mechanism, to reduce or eliminate main unfavorable factors of deformation and to make full use of the self antisliding ability of large scale landslide in controlling landslides by stages.FEM and DEM are applied to assessments and verification on the reinforcement plans of rock slopes.It shows that this method is superior to traditional ones in many aspects.