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地面超载对土钉墙工作性能影响的有限元分析

Journal of Xinyang Normal University (Natural Science Edition)(2015)

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Abstract
为了揭示土钉墙在地面超载作用下的受力和变形规律,采用有限元方法,建立了整体三维有限元模型,模拟了某深基坑土钉支护的施工过程,分析了地面超载对开挖面水平位移、坑后地面沉降、坑底隆起以及土钉轴力的影响。结果表明:随着地面超载的增加,开挖面的水平位移、坑后地面沉降均近似呈线性增加,地面超载对坑底隆起的影响较小,地面超载对上部各排土钉轴力的影响要大于下部各排。
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Key words
ground overload,soil nailed wall,working performance,finite element analysis
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