Centrifuge Modeling on Performance of Plumb-Pile-Supported Wharf under Yard-Heaped Loads
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 146, Issue 1
Abstract
This paper presents the results of a centrifuge model test performed to study the behavior of a plumb-pile-supported wharf under yard-heaped loads. A bent composed of a slab, girders, and six rows of equally spaced plumb piles was chosen for the demonstration. The horizontal and vertical displacements of the bent, the earth pressures around the piles, and the bending moments of the piles were investigated. The failure mode and mechanics of the wharf under yard-heaped loads were analyzed. Test results indicate that the horizontal displacement of the bent was significantly larger than the vertical settlement, both of which rapidly increased after reaching a threshold load value. Maximum values of earth pressures occurred at distances of of the pile length from the pile cap in the middle and rear (landside) sections of the bent. The piles on the side facing the sea were in tension in the upper part and generally in compression in the middle and lower parts. The excessive yard-heaped loads caused a large integral translation of the slope, and thus piles were pushed by the surrounding soil and deformed, primarily leading to the tilting failure of the plumb-pile-supported wharf.
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Acknowledgments
This research was supported by the National Key Research and Development Plan of China (2016YFC0802204), National Natural Science Foundation of China (Nos. 51809132 and 51808270), and the Fundamental Research Funds for the Central Research Institutes (Nos. TKS160106, TKS170102, and TKS170108).
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Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 146 • Issue 1 • January 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Oct 3, 2018
Accepted: Apr 4, 2019
Published online: Oct 9, 2019
Published in print: Jan 1, 2020
Discussion open until: Mar 9, 2020
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