Cargando…

Influence of root distribution patterns on soil dynamic characteristics

Slopes along the highway and railway routes are subjected to not only static loads but also dynamic loads generated by vehicles and trains. The induced excessive deformation potentially poses a threat to slope stability. In terms of the extensive application of ecological slope protection, plants pl...

Descripción completa

Detalles Bibliográficos
Autores principales: Liu, Shusen, Li, Jun, Ji, Xiaodong, Fang, Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9352746/
https://www.ncbi.nlm.nih.gov/pubmed/35927572
http://dx.doi.org/10.1038/s41598-022-17828-2
_version_ 1784762718580899840
author Liu, Shusen
Li, Jun
Ji, Xiaodong
Fang, Yi
author_facet Liu, Shusen
Li, Jun
Ji, Xiaodong
Fang, Yi
author_sort Liu, Shusen
collection PubMed
description Slopes along the highway and railway routes are subjected to not only static loads but also dynamic loads generated by vehicles and trains. The induced excessive deformation potentially poses a threat to slope stability. In terms of the extensive application of ecological slope protection, plants play a critical role in slope stability, as the roots can enhance the shear strength of the soil. This study aims to investigate the influence of different root distribution patterns on the dynamic characteristics induced by cyclic loading. By conducting a group of dynamic triaxial tests, the results indicate that the root system can significantly enhance the liquefaction resistance of the soil when the soil is subjected to lower dynamic loads, and the cross arrangement has a better-reinforced effect than the mixed arrangement. The reinforced effect was not obvious when the soil was subjected to a dynamic load with a larger stress amplitude. In addition, based on the validation of the seed model, a new pore water pressure development model was proposed according to the test results. Overall, the research provides a new model and some innovative observations to better understand the dynamic behavior of root-reinforced soil.
format Online
Article
Text
id pubmed-9352746
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-93527462022-08-06 Influence of root distribution patterns on soil dynamic characteristics Liu, Shusen Li, Jun Ji, Xiaodong Fang, Yi Sci Rep Article Slopes along the highway and railway routes are subjected to not only static loads but also dynamic loads generated by vehicles and trains. The induced excessive deformation potentially poses a threat to slope stability. In terms of the extensive application of ecological slope protection, plants play a critical role in slope stability, as the roots can enhance the shear strength of the soil. This study aims to investigate the influence of different root distribution patterns on the dynamic characteristics induced by cyclic loading. By conducting a group of dynamic triaxial tests, the results indicate that the root system can significantly enhance the liquefaction resistance of the soil when the soil is subjected to lower dynamic loads, and the cross arrangement has a better-reinforced effect than the mixed arrangement. The reinforced effect was not obvious when the soil was subjected to a dynamic load with a larger stress amplitude. In addition, based on the validation of the seed model, a new pore water pressure development model was proposed according to the test results. Overall, the research provides a new model and some innovative observations to better understand the dynamic behavior of root-reinforced soil. Nature Publishing Group UK 2022-08-04 /pmc/articles/PMC9352746/ /pubmed/35927572 http://dx.doi.org/10.1038/s41598-022-17828-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Liu, Shusen
Li, Jun
Ji, Xiaodong
Fang, Yi
Influence of root distribution patterns on soil dynamic characteristics
title Influence of root distribution patterns on soil dynamic characteristics
title_full Influence of root distribution patterns on soil dynamic characteristics
title_fullStr Influence of root distribution patterns on soil dynamic characteristics
title_full_unstemmed Influence of root distribution patterns on soil dynamic characteristics
title_short Influence of root distribution patterns on soil dynamic characteristics
title_sort influence of root distribution patterns on soil dynamic characteristics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9352746/
https://www.ncbi.nlm.nih.gov/pubmed/35927572
http://dx.doi.org/10.1038/s41598-022-17828-2
work_keys_str_mv AT liushusen influenceofrootdistributionpatternsonsoildynamiccharacteristics
AT lijun influenceofrootdistributionpatternsonsoildynamiccharacteristics
AT jixiaodong influenceofrootdistributionpatternsonsoildynamiccharacteristics
AT fangyi influenceofrootdistributionpatternsonsoildynamiccharacteristics