有限元法分析抗滑桩的适用条件

Conditions of application analysis of per-stressed anchor-wire anti-slide pile by FEM

预应力锚索抗滑桩作为治理滑坡的主流措施,由于其改变了普通抗滑桩不合理的悬臂受力状态,大幅度地减小了桩身弯矩、桩截面及埋深,近二十年来得到广泛的应用。但不同滑坡条件下最适宜采用何种结构形式的预应力锚索抗滑桩,是值得研究的问题。本文用有限元法分析了不同推力情况下普通抗滑桩、单锚抗滑桩及多锚抗滑桩内力分布,进行了力学比较,得出了不同结构形式的抗滑桩的适用条件,可供抗滑桩设计参考应用。

Prestressed anchor friction pile as the mainstream measure of control landslide, to change the ordinary anti-slide pile unreasonable cantilever stress state, which greatly reduces the bending moment of pile cross-section and buffed depth. The last 20 years been widely applied. For the different conditions of landslide, select the most suitable prestressed anchorage cable anti-slide pile structure, is problem worthy of study. Against ordinary anti-slide pile, distribution of single anchor cable anti-slide pile and multi-anchor cable stabilizing piles, article using the finite element method analysis the distribution of internal force of the different thrust the ease, carried out a mechanical comparison, come to the conditions of application of a different structural forms of the anti-slide pile, available anti-slide pile design reference.