Related references
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Summary: This paper introduces a modified conical strain wedge model for analyzing the nonlinear behavior of laterally loaded piles in layered sand. The model incorporates the layers in the wedge and provides a new expression for the subgrade reaction modulus based on soil strain using force balance analysis and the Duncan-Chang model. By combining this model with a finite difference model for a one-dimensional beam on a nonlinear elastic foundation, an iterative procedure is developed to predict the nonlinear response of laterally loaded piles. The proposed method outperforms existing analytical methods in predicting the nonlinear behavior, as demonstrated by comparisons with full-scale field tests and laboratory model tests.
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Summary: This paper presents an analytical method for laterally loaded piles in sand, utilizing a combination of strain wedge model and failure wedge model. A 3D finite element analysis is conducted to determine the evolution process from strain wedge model to failure wedge model, and establish the relationship between them considering the continuity of soil resistance. Two failure patterns in the evolution from strain wedge model to failure wedge model are discussed. The accuracy of the new method is validated through two centrifuge tests, showing remarkable agreement.
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Summary: This paper utilizes well-calibrated finite-element analyses to study the influence of cross section geometry on the load transfer mechanism of X-section Cast-in-place Concrete (XCC) pile under lateral load in soft clay. A lateral soil resistance model is proposed based on the results, which investigate the failure mechanism of soil flow and the ultimate lateral soil pressure. Additionally, a general p-y formula for XCC pile that considers various cross section geometries is developed, showing that XCC pile is more effective in resisting lateral load compared to traditional circular cross section piles.
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Summary: The historic canal wall structures in many Northern European cities have been built using masonry walls on timber decks founded on timber piles. A proposed analytical method has been developed to model laterally loaded pile groups in layered sloping soil. The method accurately predicts bending moment distributions and deflections, and has been validated with experimental tests. Its speed makes it suitable for probabilistic simulations and determining the failure probability of quay walls or structures with horizontally loaded piles.
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Engineering, Multidisciplinary
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Summary: This study proposes a novel 3D torsional soil-pile interaction model and derives the corresponding analytical solution for the 3D dynamic torsional impedance at the pile cross-section. The solution is validated against existing solutions and the study concludes that the classic one-dimensional theory overestimates the impedance of the pipe pile and that the impedance varies in the radial direction at the pile cross-section.
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Engineering, Marine
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Engineering, Marine
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Computer Science, Interdisciplinary Applications
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COMPUTERS AND GEOTECHNICS
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Computer Science, Interdisciplinary Applications
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Summary: This paper proposes a modified method to evaluate the ultimate lateral soil resistance of rigid piles in cohesionless soil on slopes, and validates its effectiveness through comparison with test results and numerical simulations. Additionally, the impact of slope angles on the lateral resistance around the pile is discussed, showing that the modified theoretical solution is feasible for rigid piles in cohesionless soil on slopes.
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(2021)
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Computer Science, Interdisciplinary Applications
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