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首先分析了抗滑桩的设计内容和方法,然后建立有限元模型,对普通抗滑桩和预应力锚索抗滑桩的位移、应力特征进行分析。结果表明:抗滑桩最佳布置位置滑坡推力下反弯点到滑坡出口段;普通抗滑桩桩顶部位水平位移达35cm,锚索抗滑桩在桩深9m处最大位移仅为3mm;锚索抗滑桩竖向位移相当于普通抗滑桩的1/2;锚索抗滑桩在嵌固段的应力小,受力特征较普通抗滑桩合理,在实际工程中具有更好的加固控制效果。
Firstly, the design contents and methods of anti-slide pile are analyzed. Then, the finite element model is established to analyze the displacement and stress characteristics of anti-slide pile and prestressed anchor anti-slide pile. The results show that the optimal position of anti-sliding piles is from the point of anti-bending to the exit of landslide under the thrust of landslide. The horizontal displacement of common anti-sliding pile top is 35cm, and the maximum displacement of anti-sliding piles is only 3mm at 9m. The vertical displacement of cable-stabilizing piles is equivalent to 1/2 of that of common anti-slide piles. The stress of the cable-anchored anti-slide piles in the embedded section is small, and the stress characteristics are more reasonable than ordinary anti-slide piles. Control effect.