| 后牵引式加筋挡土墙性能分析 |
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| 引用本文： | 王守康,叶晓明,罗云菊.后牵引式加筋挡土墙性能分析[J].路基工程,2018,0(3):51-54. |
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| 作者姓名： | 王守康 叶晓明 罗云菊 |
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| 作者单位： | 重庆大学土木工程学院, 重庆 400045 |
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| 摘 要： | 针对高陡边坡的支护，提出一种后牵引式加筋挡土墙，通过有限差分法软件FLAC3D建立其数值分析模型，着重分析了后牵引式加筋挡土墙在自重和上部荷载作用下的水平位移、填土的沉降、格栅的应力、外部稳定性，并与常规加筋挡土墙做比较。结果表明:后牵引式加筋挡土墙在抗滑桩的“牵引”作用下能够大幅度地减小挡墙的水平位移以及填土的沉降量；而常规加筋挡土墙易于在自重和荷载作用下发生外部稳定性破坏；后牵引式加筋挡土墙通过“牵引”作用可以避免发生破坏，从而提高填土的整体稳定性。
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| 关 键 词： | 后牵引式加筋挡土墙 数值模拟 挡墙水平变形 格栅的应力 外部稳定性 |
| 收稿时间： | 2019-11-07 |
Analysis on the Performance of Back Traction Reinforced Earth Retaining Wall |
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| Abstract: | A new support pattern is put forward in this paper which is mainly targeted at the steeper slopes-the back traction reinforced earth retaining wall. The numerical analysis model of the back traction reinforced earth retaining wall is set up by the FLAC3D which is a kind of finite difference method software. The horizontal displacement the settlement of the filling, the grid stress and the outer stability calculation are mainly analyzed in the condition of dead load and upper load. We can get the follow conclusion in comparison to the common reinforced earth retaining walls. The horizontal displacement of the retaining wall and the settlement of the filling are largely reduced by the back traction reinforced earth wall under the tractive effort of anti-slip pile. The outer stability damage of the common reinforced earth retaining walls can be easily occurred in the condition of dead load and upper load, however, the back traction reinforced earth wall can make use of the tractive effort to avoid damage, thus improve the global stability of the filling. |
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