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Experimental investigation on liquefaction and post-liquefaction deformation of stratified saturated sand under cyclic loading

Xiu, Z; Wang, S; Ji, Y; Wang, F; Ren, F

Experimental investigation on liquefaction and post-liquefaction deformation of stratified saturated sand under cyclic loading Thumbnail


Authors

Z Xiu

S Wang

F Wang

F Ren



Abstract

The soils are often distributed in a stratified structure. When an earthquake occurs, there are always risks of liquefaction for stratified soils which can cause serious consequences. The research aims to investigate the liquefaction and post-liquefaction deformation of saturated sand with stratified structure. The influences of liquefaction and post-liquefaction deformation were analyzed by varying the thickness, position, and layers of powdery sands. The findings showed that the correlations between the times taken to reach liquefaction for cyclic loading and the thicknesses of the powdery sandy interlayer are non-linear. With the optimal thickness, the powdery sand interlayer can effectively prevent the transfer of power water pressure. And two-layer powdery interlayer in the sample was more favorable to resist pore water pressure than that with single layer. The strength of post-liquefaction deformation and failure patterns are closely related to the distribution of powdery layer. The work provides new research evidence on the liquefaction and failure mechanism of saturated sands with stratified structure under cyclic loading which often happen during earthquakes.

Citation

Xiu, Z., Wang, S., Ji, Y., Wang, F., & Ren, F. (2020). Experimental investigation on liquefaction and post-liquefaction deformation of stratified saturated sand under cyclic loading. Bulletin of Engineering Geology and the Environment, 79, 2313-2324. https://doi.org/10.1007/s10064-019-01696-8

Journal Article Type Article
Acceptance Date Dec 4, 2019
Online Publication Date Dec 20, 2019
Publication Date Jul 1, 2020
Deposit Date Jan 7, 2020
Publicly Available Date Dec 20, 2020
Journal Bulletin of Engineering Geology and the Environment
Print ISSN 1435-9529
Electronic ISSN 1435-9537
Publisher Springer Verlag
Volume 79
Pages 2313-2324
DOI https://doi.org/10.1007/s10064-019-01696-8
Publisher URL https://doi.org/10.1007/s10064-019-01696-8
Related Public URLs https://link.springer.com/journal/10064
Additional Information Access Information : This is a post-peer-review, pre-copyedit version of an article published in Bulletin of Engineering Geology and the Environment. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10064-019-01696-8
Funders : National Natural Science Foundation of China
Projects : Liaoning Science and Technology Project (2019JH2/10100035)
Grant Number: U1602232
Grant Number: 51474050