不同库水位条件下边坡锚索抗滑桩变形受力特征研究

Study on deformation and stress characteristics of the anti-slide pile with anchor cable under different reservoir water levels

为研究不同库区水位条件下岸坡锚索抗滑桩的受力变形特征,本文利用GTS NX有限元软件建立了锚索抗滑桩支护前后的岸坡稳定性计算模型,分析了锚索抗滑桩对岸坡的加固效果,探讨了不同水位工况下岸坡的变形分布规律,获得了锚索抗滑桩的内力变形特征。结果表明:175m降至145m的变水位工况下边坡变形最大且分布区域广,且抗滑桩内力变形也最大,岸坡的最大水平位移、抗滑桩的最大剪力和弯矩分别达23.2mm、2368kN和14412kN·m。研究结果为类似工程条件下岸坡的锚索抗滑桩设计提供借鉴。

In order to study the stress and deformation characteristics of anchor cable anti slide pile on bank slope under different water levels in reservoir area,this paper establishes the calculation model of bank slope stability before and after anchor cable anti slide pile support by using GTS NX finite element software,analyzes the reinforcement effect of anchor cable anti slide pile on bank slope,discusses the deformation distribution law of bank slope under different water levels,and obtains the internal force and deformation characteristics of anchor cable anti slide pile.The results show that under the condition of variable water level from 175m to 145m,the slope deformation is the largest and widely distributed,and the internal force deformation of anti-slide pile is also the largest.The maximum horizontal displacement of bank slope,the maximum shear force and bending moment of anti-slide pile are 23.2mm,2368kN and 14412kN·m,respectively.The research results provide reference for the design of anchor cable anti slide pile on bank slope under similar engineering conditions.