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工程力学  2014 

静压PHC管桩群桩效应的数值模拟分析

, PP. 139-144

Keywords: 岩土工程,群桩效应,数值模拟,PHC桩(预应力高强度混凝土管桩),桩间距,桩长

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Abstract:

该文首先利用现场试验所得数据与ABAQUS数值模拟数据进行比较,验证网格尺寸和网格类型等参数,随后建立不同几何参数的PHC桩(预应力高强度混凝土管桩)群桩模型并计算分析。结果发现,在一定范围内,群桩效应比较明显,随着桩间距的增大,群桩承载力逐渐提高,但增长幅度不断变小,超过临界桩间距后群桩效应表现微弱;而对于不同桩长条件下,群桩承载力也是随着桩长的增加而非线性的增大,最终也趋于定值。

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