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Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM
Joint Authors
Sun, Tingting
Zhang, Zhihua
Yang, Jixin
Yang, Jingnan
Zhang, Xuan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-12
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
When bridge construction has been completed, the temporary support system, such as a steel-pipe pile, is dismantled, and problems that are related to the steel-pipe piles pulling from the strata are encountered.
It is difficult to measure the dynamic characteristics of the surroundings during the deep pile-pulling process.
A numerical model of the pulling pile is established by using the discrete element method (DEM).
A sinusoidal dynamic load is executed on the pile with various vibrational frequencies.
The stress, bond, coordination number, porosity, and velocity field distribution of the surrounding soil during the pile-pulling process are studied.
The results demonstrate that, during the pile-pulling process, the shearing state of the surrounding soil depends on the position of the pile.
The number and area of bond fractures gradually increase, the coordination number decreases, and the porosity gradually increases when the pile-pulling distance increases.
Under a vibrational load, the area that corresponds to particles with large velocity and displacement expands with the increase of the vibrational frequency.
The major influence zone of the pile pulling on both sides is concentrated within 6dpile, which can be used to evaluate the safety of the existing bridge nearby during pile pulling.
American Psychological Association (APA)
Sun, Tingting& Zhang, Zhihua& Yang, Jixin& Yang, Jingnan& Zhang, Xuan. 2020. Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM. Shock and Vibration،Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1209984
Modern Language Association (MLA)
Sun, Tingting…[et al.]. Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM. Shock and Vibration No. 2020 (2020), pp.1-18.
https://search.emarefa.net/detail/BIM-1209984
American Medical Association (AMA)
Sun, Tingting& Zhang, Zhihua& Yang, Jixin& Yang, Jingnan& Zhang, Xuan. Dynamic Characteristics of the Surrounding Soil during the Vibrational Pulling Process of a Pile Based on DEM. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1209984
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209984