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Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields

Yu, Jian / Zhu, Kewen / Huang, Maosong / Tan, Qi Wen Jorgin

An axisymmetric streamline velocity field is developed and applied to the upper-bound analysis of uplift piles in undrained clay with a linear relationship between undrained strength and depth. The obtained upper-bound uplift bearing capacity factors (N_c) are verified by comparing with elastoplastic finite-element and existing lower-bound solutions. Parametric studies are carried out to investigate the variation of N_c with different embedment ratios, pile roughness and undrained strength profile. A formulation predicting the upper-bound capacity of uplift piles in clay is proposed. Finally, its reliability is assessed by comparing with existing laboratory and field test results.

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Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields

Yu, Jian / Zhu, Kewen / Huang, Maosong / Tan, Qi Wen Jorgin

An axisymmetric streamline velocity field is developed and applied to the upper-bound analysis of uplift piles in undrained clay with a linear relationship between undrained strength and depth. The obtained upper-bound uplift bearing capacity factors (N_c) are verified by comparing with elastoplastic finite-element and existing lower-bound solutions. Parametric studies are carried out to investigate the variation of N_c with different embedment ratios, pile roughness and undrained strength profile. A formulation predicting the upper-bound capacity of uplift piles in clay is proposed. Finally, its reliability is assessed by comparing with existing laboratory and field test results.

Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields

Yu, Jian / Zhu, Kewen / Huang, Maosong / Tan, Qi Wen Jorgin

An axisymmetric streamline velocity field is developed and applied to the upper-bound analysis of uplift piles in undrained clay with a linear relationship between undrained strength and depth. The obtained upper-bound uplift bearing capacity factors (N_c) are verified by comparing with elastoplastic finite-element and existing lower-bound solutions. Parametric studies are carried out to investigate the variation of N_c with different embedment ratios, pile roughness and undrained strength profile. A formulation predicting the upper-bound capacity of uplift piles in clay is proposed. Finally, its reliability is assessed by comparing with existing laboratory and field test results.

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Title:

Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields

Additional title:

Acta Geotech.

Contributors:

Yu, Jian (author) / Zhu, Kewen (author) / Huang, Maosong (author) / Tan, Qi Wen Jorgin (author)

Published in:

Acta Geotechnica ; 18 ; 2457-2471

Publication date:

2023-05-01

Size:

15 pages

ISSN:

1861-1133 , 1861-1125

DOI:

https://doi.org/10.1007/s11440-022-01699-y

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Limit analysis , Nonhomogeneous clay , Streamline velocity , Uplift piles Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics

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