Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/116634
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Type: Journal article
Title: Performance of screw-shaft pile in sand: model test and DEM simulation
Author: Chen, Y.
Deng, A.
Wang, A.
Sun, H.
Citation: Computers and Geotechnics, 2018; 104:118-130
Publisher: Elsevier
Issue Date: 2018
ISSN: 0266-352X
1873-7633
Statement of
Responsibility: 
Yadong Chen, An Deng, Anting Wang, Huasheng Sun
Abstract: A screw-shaft pile is a bored, cast-in-situ, displacement foundation solution. This study examines the performance of axially loaded screw-shaft piles by laboratory model tests, digital image correlation, and discrete element modelling. The results suggested that the screw section carried a greater vertical load than the corresponding section of the control pile; hence, the screw-shaft pile outperformed the control pile. The screw-shaft pile achieved better performance by influencing a larger volume of sand. The sand around the screw section exhibited enlarged cone-shape shear slips and contributed to gains in the pile capacity.
Keywords: Screw-shaft pile; pile-soil interaction; load transfer; digital image correlation; discrete element method
Rights: © 2018 Elsevier Ltd. All rights reserved.
RMID: 0030096865
DOI: 10.1016/j.compgeo.2018.08.013
Appears in Collections:Civil and Environmental Engineering publications

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