防滑铲处治斜坡软弱地基路堤工作机理探讨
Working mechanism of slide-resistant shovel used in embankmentover sloped weak ground

为探讨防滑铲处治斜坡软弱地基路堤的工作机理，基于刚体极限平衡法软件Slide，建立防滑铲处治斜坡软弱地基路堤的计算模型，对比有无防滑铲时可能滑动带、最危险滑动面的区别，获得稳定安全系数与地层坡度、防滑铲深度的动态变化关系，结合敏感度分析，明确土体材料参数对路堤稳定性的影响程度，并提出联合其他措施共同处治、回填材料应以重度控制为准等优化设计途径。
In order to obtain the working mechanism of embankment over sloped weak ground reinforced by slide-resistant shovel, the corresponding model was established based on Slide software developed by rigid body limit equilibrium method. Potential slip bands and the critical slip surfaces with and without slide-resistant shovel were compared. The dynamic relationship between factor of safety and the stratum slope, the slide-resistant shovel depth were obtained. Sensitivity analysis was conducted to obtain the effect of variability in the values of soil material parameters. Design optimization approach was put forward, for example, slide-resistant shovel works with other measurements simultaneously and backfill materials should be subject to unit weight, and so on