抗滑短桩越顶问题的有限元验证

抗滑短桩是介于抗滑键与全长桩的一种特殊的抗滑桩,由于其较全长桩经济,已在实际工程中应用。云阳县太公沱至余家包库岸大咀段库岸因其下滑推力大、滑面埋深深,采用常规的抗滑桩极其不合理,通过方案比选此滑坡采用长12m的抗滑短桩进行支护。运用有限元强度折减法对设置抗滑短桩后,对滑面是否越过桩顶进行了验证。经计算设置抗滑短桩后滑坡稳定系数为1．25,说明滑坡采用抗滑短桩支护是可行的。

The Finite Element Confirmation about whether the Sliding Face Cross Over the Short Anti-side Pile

The short anti-side pile is one kind of special pile situated between the anti-slide tie and the long pile. It is economical, compared to the long pile, and therefore has been applied in actual projects. The Dazui Bank in Yunyang County between Taigongtuo and Yujiabao Bank suffers such heavy thrust and deeply buried slide face that conventional anti-side pile can't meet its needs. The compare of programmers suggests that a 12m anti-side pile is better to retain the bank. The Strength Reduction Finite Element Method is applied to test whether the sliding face cross over the pile with the short anti-side piles. Set up short anti-side piles, landslides stability factor comes to 1.25, which means that short anti-side piles is feasible to retain the bank landslides.