https://orcid.org/0000-0002-6253-904X
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Abstract
This study is devoted to investigating the effect of nearby strip loading on the lateral bearing capacity of offshore large-diameter monopiles at the crest of marine clay slope by the finite element limit analysis (FELA) method. After the successive validations by cases of rigid piles and strip footings at the clay slope crest, the safe domains for the laterally loaded large-diameter monopiles are defined by the failure envelopes relating the dimensionless lateral bearing capacity Hu/(cuD2) to dimensionless strip loading q/cu. Particularly, all failure envelopes are depicted by closed-form expressions and design charts can then be given for a quick and straightforward assessment of dimensionless lateral bearing capacity for a wide range of frequently-encountered cases. In addition, the interaction between the pile bearing capacity and nearby strip loading is characterized by introducing the relationship of normalized parameters Hu/(cuD2) and q/cu, then graphically explained by plastic multiplier contour plots. Several kinds of representative curves are given successively to further clarify the effects of dimensionless factors on the interaction.
Acknowledgment
The authors are thankful to OptumCE for the free access of OptumG2 program (academic edition) to perform this study.
Disclosure statement
No conflict of interest exits in the submission of this manuscript, and manuscript is approved by all authors for publication.
Data availability statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request (the data in the graph and the code of calculation, etc).