Undrained bearing capacity of spudcan under combined loading
Undrained bearing capacity of spudcan under combined loading
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DOI：
10.1007/s13344-011-0002-0
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发表时间：
2011-04
影响因子：
1.6
通讯作者：
Lizhong Wang;H. Shu;Lingling Li;Zhen Guo
中科院分区：
文献类型：
--
作者：
Lizhong Wang;H. Shu;Lingling Li;Zhen Guo
通过一系列三维有限元分析，研究了桩基在纯竖向荷载(V)、水平荷载(H)、弯矩荷载(M)以及复合荷载作用下的承载能力。详细分析了埋藏率和土体非均质性对地基承载力的影响。用无量纲承载系数表示不同纯荷载作用下的承载能力，并与已发表的结果进行了比较。组合荷载作用下的极限状态由破坏包络表示，破坏包络在三维荷载空间中以无量纲和归一化形式表示。将所提出的破坏包络与已有的数值结果进行了比较，结果表明，破坏包络的大小和形状取决于埋藏率和土体的非均质性。
The bearing capacities of spudcan foundation under pure vertical (V), horizontal (H), moment (M) loading and the combined loading are studied based on a series of three-dimensional finite element analysis. The effects of embedment ratio and soil non-homogeneity on the bearing capacity are investigated in detail. The capacities of spudcan under different pure loading are expressed in non-dimensional bearing capacity factors, which are compared with published results. Ultimate limit states under combined loading are presented by failure envelopes, which are expressed in terms of dimensionless and normalized form in three-dimensional load space. The comparison between the presented failure envelopes and available published numerical results reveals that the size and shape of failure envelopes are dependent on the embedment ratio and the non-homogeneity of the soil.