Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields.
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| Title: | Upper-bound analysis of uplift piles in nonhomogeneous clay using streamline velocity fields. |
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| Authors: | Yu, Jian1 (AUTHOR), Zhu, Kewen1 (AUTHOR), Huang, Maosong1 (AUTHOR) mshuang@tongji.edu.cn, Tan, Qi Wen Jorgin2 (AUTHOR) |
| Source: | Acta Geotechnica. May2023, Vol. 18 Issue 5, p2457-2471. 15p. |
| Subjects: | Clay, Velocity, Lateral loads |
| Abstract: | 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 (Nc) are verified by comparing with elastoplastic finite-element and existing lower-bound solutions. Parametric studies are carried out to investigate the variation of Nc 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. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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