Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface

Geogrid-reinforced structures are extensively adopted in various engineering fields. At present, the influence of boundary conditions was not considered in design methods, bringing hidden dangers to the safety of the structure. In the current study, a series of pullout tests were carried out on high...

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Autores principales:	Zheng Zuo, Guangqing Yang, Zhijie Wang, He Wang, Jing Jin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	geogrid pullout test boundary conditions Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1c50234de68d47beb5753892cdb7aa97
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id	oai:doaj.org-article:1c50234de68d47beb5753892cdb7aa97
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spelling	oai:doaj.org-article:1c50234de68d47beb5753892cdb7aa972021-11-11T15:02:13ZEffect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface10.3390/app112199422076-3417https://doaj.org/article/1c50234de68d47beb5753892cdb7aa972021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9942https://doaj.org/toc/2076-3417Geogrid-reinforced structures are extensively adopted in various engineering fields. At present, the influence of boundary conditions was not considered in design methods, bringing hidden dangers to the safety of the structure. In the current study, a series of pullout tests were carried out on high-density polyethylene (HDPE) geogrid-reinforced coarse sand. The magnitude and growth pattern of pullout resistance and the variation laws of interfacial shear strength indexes under four types of boundary conditions were analyzed. Additionally, the boundary reduction coefficient (<i>BRC</i>) was introduced to establish the relationship between rigid and flexible boundary for the design of the structure. The tests results showed that the boundary conditions cannot be ignored in the design of structures, especially in the front. When the normal loading was up to 120 kPa, the <i>BRC</i>-top and <i>BRC</i>-positive could be taken as 0.9 and 0.5, respectively, and verified by fitting results. The boundary conditions affected the pullout resistance, while the vertical loading corresponding to the maximum pullout resistance was not related to boundary conditions. Investigating the interaction of the geogrid–soil under different boundary conditions can help to improve the understanding of the behavior of reinforced soil structure, and to achieve a more efficient and economical design.Zheng ZuoGuangqing YangZhijie WangHe WangJing JinMDPI AGarticlegeogridpullout testboundary conditionsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9942, p 9942 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	geogrid pullout test boundary conditions Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	geogrid pullout test boundary conditions Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Zheng Zuo Guangqing Yang Zhijie Wang He Wang Jing Jin Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
description	Geogrid-reinforced structures are extensively adopted in various engineering fields. At present, the influence of boundary conditions was not considered in design methods, bringing hidden dangers to the safety of the structure. In the current study, a series of pullout tests were carried out on high-density polyethylene (HDPE) geogrid-reinforced coarse sand. The magnitude and growth pattern of pullout resistance and the variation laws of interfacial shear strength indexes under four types of boundary conditions were analyzed. Additionally, the boundary reduction coefficient (<i>BRC</i>) was introduced to establish the relationship between rigid and flexible boundary for the design of the structure. The tests results showed that the boundary conditions cannot be ignored in the design of structures, especially in the front. When the normal loading was up to 120 kPa, the <i>BRC</i>-top and <i>BRC</i>-positive could be taken as 0.9 and 0.5, respectively, and verified by fitting results. The boundary conditions affected the pullout resistance, while the vertical loading corresponding to the maximum pullout resistance was not related to boundary conditions. Investigating the interaction of the geogrid–soil under different boundary conditions can help to improve the understanding of the behavior of reinforced soil structure, and to achieve a more efficient and economical design.
format	article
author	Zheng Zuo Guangqing Yang Zhijie Wang He Wang Jing Jin
author_facet	Zheng Zuo Guangqing Yang Zhijie Wang He Wang Jing Jin
author_sort	Zheng Zuo
title	Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
title_short	Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
title_full	Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
title_fullStr	Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
title_full_unstemmed	Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface
title_sort	effect of boundary conditions on the mechanical behavior of the geogrid–soil interface
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1c50234de68d47beb5753892cdb7aa97
work_keys_str_mv	AT zhengzuo effectofboundaryconditionsonthemechanicalbehaviorofthegeogridsoilinterface AT guangqingyang effectofboundaryconditionsonthemechanicalbehaviorofthegeogridsoilinterface AT zhijiewang effectofboundaryconditionsonthemechanicalbehaviorofthegeogridsoilinterface AT hewang effectofboundaryconditionsonthemechanicalbehaviorofthegeogridsoilinterface AT jingjin effectofboundaryconditionsonthemechanicalbehaviorofthegeogridsoilinterface
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Effect of Boundary Conditions on the Mechanical Behavior of the Geogrid–Soil Interface

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