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抗滑桩桩间土拱效应及其土拱模式分析

, PP. 30-37

Keywords: 道路工程,抗滑桩,理论分析,土拱,桩间距

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Abstract:

？为研究坡体抗滑桩间土拱的传递荷载机制,首先对抗滑桩桩身迎荷面土拱和桩侧摩阻力土拱的计算方法和使用条件分别进行了分析与论述，然后将这些分析结果与已有研究结果相比较，最后结合土体滑移模式阐述了土拱的形状沿深度的变化及客观存在的重力场对土拱的强化效果。研究结果表明：依赖桩侧摩阻力为拱座的土拱是土坡抗滑桩承担滑坡推力的主要土拱，其能承受住滑坡推力并把该力传至抗滑的桩体；桩身迎荷面土拱是具有临空面的边坡抗滑桩或基坑护壁桩工程中的主要承载土拱。

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