由桩后土拱形成的条件对抗滑桩间距的计算

结合抗滑桩后土拱效应的形成机理,通过对土拱的受力分析,认为土拱具有三种破坏形式,得到了抗滑桩合理桩间距的简明计算公式,并通过工程实例计算表明利用该计算公式得到的桩间距既能够保证桩间岩土体抗滑能力的充分发挥,又能保证边坡的稳定性。

The calculation of pile spacing between anti-sliding piles in accordance with the condition of soil arching generating

By combining with the principle of forming soil arching surrounding anti-sliding pile, in this paper, the mechanical characteristics of soil arching is analyzed, and the conclusion that there are three kinds of failure form to the soil arching is proposed. The theory and method on a simply and reasonable caldation formula is set up for pile spacing. The calculation formula of spacing between adjacent piles is illustrated by a practical project and the result shows that the pile spacing from the formula rational can not only guarantee the soil to exert all anti-sliding power but also ensure the slope stability.