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Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal–vertical (H–V) geogrid-reinforced foundation. The bearing capacities of the unreinforced foundation, the conventional geogrid, and the H–V geogrid-reinforced foundation were compared....

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Autores principales: Hou, Juan, Liu, Sitong, Nam, Boohyun, Ma, Yanxia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301547/
https://www.ncbi.nlm.nih.gov/pubmed/37376258
http://dx.doi.org/10.3390/polym15122606
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author Hou, Juan
Liu, Sitong
Nam, Boohyun
Ma, Yanxia
author_facet Hou, Juan
Liu, Sitong
Nam, Boohyun
Ma, Yanxia
author_sort Hou, Juan
collection PubMed
description A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal–vertical (H–V) geogrid-reinforced foundation. The bearing capacities of the unreinforced foundation, the conventional geogrid, and the H–V geogrid-reinforced foundation were compared. The parameters, including the length of the H–V geogrid, the vertical geogrid height, the depth of the top layer, and the number of H–V geogrid layers, are discussed. Through experiments, it was found that the optimal length of H–V geogrid is around 4B, the optimal vertical geogrid height is approximately 0.6B, and the optimal depth of the top H–V geogrid layer is between 0.33B and 1B. The optimal number of H–V geogrid layers is 2. The result also indicates that the bearing capacity of H–V geogrid is almost 1.7 times greater than that of conventional geogrid. Additionally, the maximum top subsidence of H–V geogrid-reinforced foundation decreased by 13.63% compared to that of conventional geogrid-reinforced foundation. Under the same settlement, the bearing capacity ratio of two H–V geogrid-reinforced foundation layers is 75.28% higher than that of one layer. The results also demonstrate that the vertical elements of H–V geogrid interlock the sand from being displaced under the applied load and redistribute the surcharge over a wider area, thereby increasing the shear strength and improving the bearing capacity of an H–V geogrid-reinforced foundation.
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spelling pubmed-103015472023-06-29 Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation Hou, Juan Liu, Sitong Nam, Boohyun Ma, Yanxia Polymers (Basel) Article A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal–vertical (H–V) geogrid-reinforced foundation. The bearing capacities of the unreinforced foundation, the conventional geogrid, and the H–V geogrid-reinforced foundation were compared. The parameters, including the length of the H–V geogrid, the vertical geogrid height, the depth of the top layer, and the number of H–V geogrid layers, are discussed. Through experiments, it was found that the optimal length of H–V geogrid is around 4B, the optimal vertical geogrid height is approximately 0.6B, and the optimal depth of the top H–V geogrid layer is between 0.33B and 1B. The optimal number of H–V geogrid layers is 2. The result also indicates that the bearing capacity of H–V geogrid is almost 1.7 times greater than that of conventional geogrid. Additionally, the maximum top subsidence of H–V geogrid-reinforced foundation decreased by 13.63% compared to that of conventional geogrid-reinforced foundation. Under the same settlement, the bearing capacity ratio of two H–V geogrid-reinforced foundation layers is 75.28% higher than that of one layer. The results also demonstrate that the vertical elements of H–V geogrid interlock the sand from being displaced under the applied load and redistribute the surcharge over a wider area, thereby increasing the shear strength and improving the bearing capacity of an H–V geogrid-reinforced foundation. MDPI 2023-06-08 /pmc/articles/PMC10301547/ /pubmed/37376258 http://dx.doi.org/10.3390/polym15122606 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hou, Juan
Liu, Sitong
Nam, Boohyun
Ma, Yanxia
Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title_full Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title_fullStr Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title_full_unstemmed Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title_short Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation
title_sort bearing capacity and mechanism of the h–v geogrid-reinforced foundation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10301547/
https://www.ncbi.nlm.nih.gov/pubmed/37376258
http://dx.doi.org/10.3390/polym15122606
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