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Influence of the inner soil on the torsional vibration of a pipe pile considering the construction disturbance
This paper is concentrated on the influence of the inner soil on the torsional vibration of a pipe pile embedded in inhomogeneous soil. First, the soil–pile system is divided into several segments in the vertical direction in accordance with the layered properties of the soil and the inner soil-filled height. Then, the outer (inner) soil is further subdivided into finite vertical ring-shaped zones in the radial direction to simulate its radial inhomogeneity due to the construction disturbance. The dynamic equilibrium equation for each outer (inner) soil zone is solved, and the outer (inner) soil-pipe pile dynamic interaction is obtained. On this basis, the dynamic equilibrium equation for the pipe pile is solved by the Laplace transform and the recursive method is employed to derive the analytical solutions for the complex impedance and amplitude-frequency response of the twist angle at the pile head. The reliability of the proposed solutions is verified by comparisons with other solutions. Finally, a sensitivity analysis is performed to portray the influence of the inner soil on the torsional vibration of the pipe pile.
Influence of the inner soil on the torsional vibration of a pipe pile considering the construction disturbance
This paper is concentrated on the influence of the inner soil on the torsional vibration of a pipe pile embedded in inhomogeneous soil. First, the soil–pile system is divided into several segments in the vertical direction in accordance with the layered properties of the soil and the inner soil-filled height. Then, the outer (inner) soil is further subdivided into finite vertical ring-shaped zones in the radial direction to simulate its radial inhomogeneity due to the construction disturbance. The dynamic equilibrium equation for each outer (inner) soil zone is solved, and the outer (inner) soil-pipe pile dynamic interaction is obtained. On this basis, the dynamic equilibrium equation for the pipe pile is solved by the Laplace transform and the recursive method is employed to derive the analytical solutions for the complex impedance and amplitude-frequency response of the twist angle at the pile head. The reliability of the proposed solutions is verified by comparisons with other solutions. Finally, a sensitivity analysis is performed to portray the influence of the inner soil on the torsional vibration of the pipe pile.
Influence of the inner soil on the torsional vibration of a pipe pile considering the construction disturbance
Acta Geotech.
Li, Zhenya (author) / Gao, Yufeng (author)
Acta Geotechnica ; 16 ; 3647-3665
2021-11-01
19 pages
Article (Journal)
Electronic Resource
English
Amplitude-frequency response of the twist angle , Complex impedance , Construction disturbance , Inner soil , Pipe pile , Torsional vibration 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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