Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method

The present study is to investigate the stability of the backfill subgrade on the lower bearing capacity foundation. A finite element (FE) model was constructed to simulate the high-filled road subjected to the actual self-weight load. The strength reduction method was adopted to establish an analys...

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Autores principales:	Wenjuan Xu, Xin Huang, Jiandong Huang, Zhengjun Yang
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/b613c5ef37b643d2b81bd8a90514db9b
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spelling	oai:doaj.org-article:b613c5ef37b643d2b81bd8a90514db9b2021-11-22T01:09:31ZStructural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method1687-809410.1155/2021/1690168https://doaj.org/article/b613c5ef37b643d2b81bd8a90514db9b2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/1690168https://doaj.org/toc/1687-8094The present study is to investigate the stability of the backfill subgrade on the lower bearing capacity foundation. A finite element (FE) model was constructed to simulate the high-filled road subjected to the actual self-weight load. The strength reduction method was adopted to establish an analysis model of slope stability. At the same time, the sensitivity analysis of the factors affecting the slope stability was carried out through parametric studies, including the elastic modulus, cohesion, internal friction angle, and slope rate. The results showed that the slope stability analysis model established by the strength reduction method can characterize the stability of the slope by calculating the slope safety coefficient. The mutation point of the relationship curve between the displacement generated in the slope and the reduction coefficient can be used as the criterion. Under the condition of a given strength reduction coefficient, the calculated results obtained through FE modeling can show the development of the equivalent plastic zone in the form of cloud diagrams.Wenjuan XuXin HuangJiandong HuangZhengjun YangHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040ENAdvances in Civil Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Wenjuan Xu Xin Huang Jiandong Huang Zhengjun Yang Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
description	The present study is to investigate the stability of the backfill subgrade on the lower bearing capacity foundation. A finite element (FE) model was constructed to simulate the high-filled road subjected to the actual self-weight load. The strength reduction method was adopted to establish an analysis model of slope stability. At the same time, the sensitivity analysis of the factors affecting the slope stability was carried out through parametric studies, including the elastic modulus, cohesion, internal friction angle, and slope rate. The results showed that the slope stability analysis model established by the strength reduction method can characterize the stability of the slope by calculating the slope safety coefficient. The mutation point of the relationship curve between the displacement generated in the slope and the reduction coefficient can be used as the criterion. Under the condition of a given strength reduction coefficient, the calculated results obtained through FE modeling can show the development of the equivalent plastic zone in the form of cloud diagrams.
format	article
author	Wenjuan Xu Xin Huang Jiandong Huang Zhengjun Yang
author_facet	Wenjuan Xu Xin Huang Jiandong Huang Zhengjun Yang
author_sort	Wenjuan Xu
title	Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
title_short	Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
title_full	Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
title_fullStr	Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
title_full_unstemmed	Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method
title_sort	structural analysis of backfill highway subgrade on the lower bearing capacity foundation using the finite element method
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/b613c5ef37b643d2b81bd8a90514db9b
work_keys_str_mv	AT wenjuanxu structuralanalysisofbackfillhighwaysubgradeonthelowerbearingcapacityfoundationusingthefiniteelementmethod AT xinhuang structuralanalysisofbackfillhighwaysubgradeonthelowerbearingcapacityfoundationusingthefiniteelementmethod AT jiandonghuang structuralanalysisofbackfillhighwaysubgradeonthelowerbearingcapacityfoundationusingthefiniteelementmethod AT zhengjunyang structuralanalysisofbackfillhighwaysubgradeonthelowerbearingcapacityfoundationusingthefiniteelementmethod
_version_	1718418420758740992

Structural Analysis of Backfill Highway Subgrade on the Lower Bearing Capacity Foundation Using the Finite Element Method

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