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논문 기본 정보

자료유형
학술저널
저자정보
Hyeong Joo Kim (군산대학교) Jose Leo C. Mission (군산대학교) Il Sang Park (군산대학교)
저널정보
대한토목학회 KSCE JOURNAL OF CIVIL ENGINEERING KSCE JOURNAL OF CIVIL ENGINEERING Vol.11 No.6
발행연도
2007.11
수록면
285 - 292 (8page)

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A modified analytical model is proposed in this study for the analysis of pile axial load capacity with the load transfer method using nonlinear T-z and Q-z curves to model soil-pile behavior in skin friction or side shear and end bearing respectively. The method uses a three-dimensional (3D) pile model using solid finite elements with nonlinear load transfer curves resolved into components and mobilized around the pile perimeter. The use of multiple T-z component springs is demonstrated to accurately capture the total side resistance of the pile. The 3D pile method produces results of predicted pile axial load capacities from the load-settlement curves comparable to the one-dimensional analysis (1D) method. For a combined vertical and lateral loading on the pile, the proposed 3D pile method can address the limitation of the 1D pile method having vertical and lateral springs only acting at the pile center without rotational springs, which neglects the contribution of the side shear in the computation of pile bending moments. In the case of 3D pile model the moment or couple developed by the side shear around the perimeter can be taken into account, where this moment can be significant especially in strong soil material or in the case of large diameter pile/shafts.

목차

Abstract
1. Introduction
2. Numerical Model and Analysis using T-z and Q-z Load Transfer Methods
3. Analytical Model using Component T-z Springs Mobilized Around the Perimeter
4. Verification of Predicted Axial Load Capacity
5. Significance of the Study
6. Summary and Conclusion
Acknowledgements
References

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