Failure envelopes of rigid tripod pile foundation under combined vertical-horizontal-moment loadings in clay
Article
Article Title | Failure envelopes of rigid tripod pile foundation under combined vertical-horizontal-moment loadings in clay |
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ERA Journal ID | 22096 |
Article Category | Article |
Authors | Zhao, Zihao, Zhang, Hao, Shiau, Jim, Du, Wei, Ke, Lijun, Wu, Fengyuan and Bao, Xu |
Journal Title | Applied Ocean Research |
Journal Citation | 150 |
Article Number | 104131 |
Number of Pages | 15 |
Year | 2024 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0141-1187 |
1879-1549 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.apor.2024.104131 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0141118724002529 |
Abstract | The problem considered in this computational study is for the bearing capacity determination of three-dimensional (3D) rigid tripod-pile groups subjected to combined vertical (V), horizontal (H), and bending moment (M) loads. Using the adaptive 3D finite element limit analysis (FELA) coupled with lower bound, upper bound and mixed Gauss element formulations, numerical results are compared with those of the previous study under a single-component loading (V, or H, or M). The failure envelope in the 3D V–H–M loading space is then constructed, and several failure mechanisms presented to complement the discussions on the complex 3D responses. This is followed by a parametric study for the various factors such as the pile length, pile spacing, pile-soil adhesion factors as well as the loading direction angle. Finally, a closed-form design expression of failure envelopes considering the abovementioned influential parameters and the combined load are derived. Noting that the current industry-based design procedures for tripod-pile groups are rarely found, the outcome of the present study can be used with great confidence in design practice. |
Keywords | Piles; Tripod pile group; Bearing capacity; Finite element limit analyses; Clays; Failure envelope |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
Byline Affiliations | Shenyang Jianzhu University, China |
Hohai University, China | |
Shen Kan Engineering and Technology Corporation, China | |
School of Engineering | |
China State Construction Railway Investment and Engineering Group, China | |
Yangzhou University, China |
https://research.usq.edu.au/item/z86q8/failure-envelopes-of-rigid-tripod-pile-foundation-under-combined-vertical-horizontal-moment-loadings-in-clay
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