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基于FLAC3D软件对抗滑桩加固滑坡进行数值模拟分析,从位移场、应力场。塑性区分布三个方面对滑坡支护前后效果进行分析,得出以下结论:边坡主要以压应力为主,但主应力方向基本上与边坡表面平行,因此对边坡的稳定性不利,但抗滑桩改变了周围的应力状态,对于改善边坡内部的应力状态也具有很好的效果。塑性区大部分为剪切塑性屈服,处于岩土分界面以上,且有所贯通,表明边坡内部土体的在自重的作用下发生了剪切屈服,抗滑桩可以隔断塑性区的贯通,有利于边坡稳定。
Based on FLAC3D software, numerical simulation analysis of landslide strengthened by anti - slide piles is carried out, including displacement field and stress field. Plastic zone distribution of three aspects of the landslide support before and after the effect is analyzed, the following conclusions: The main slope to compressive stress, but the main stress direction is basically parallel with the slope surface, so the stability of the slope adverse, However, the anti-slide piles change the surrounding stress state and have a good effect on improving the stress state inside the slope. The plastic zone is mostly plastic shear yielding, above the geotechnical interface, which indicates that the shear strength of soil under the action of self-weight occurs in the slope. The anti-slide piles can cut through the plastic zone, It is conducive to slope stability.