首页|Numerical analysis of geosynthetic-reinforced embankment performance under moving loads

Numerical analysis of geosynthetic-reinforced embankment performance under moving loads

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The performance of geosynthetic-reinforced embankments under traffic moving loads is always a hot-spot in the geotechnical engineering field.A three-dimensional(3D)model of a geosynthetic-reinforced embankment without drainage consolidation was established using the finite element software ABAQUS.In this model,the traffic loads were simulated by two moving loads of rectangular pattern,and their amplitude,range,and moving speed were realized by a Fortran subroutine.The embankment fill was simulated by an equivalent linear viscoelastic model,which can reflect its viscoelasticity.The geogrid was simulated by the truss element,and the geocell was simulated by the membrane element.Infinite ele-ments were utilized to weaken the boundary effect caused by the model geometry at the boundaries.Validation of the established numerical model was conducted by comparing the predicted deformations in the cross-section of the geosynthetic-reinforced embankment with those from the existing literature.On this basis,the dynamic stress and strain distribution in the pavement structure layer of the geosynthetic-reinforced embankment under a moving load was also analyzed.Finally,a parametric study was conducted to examine the influences of the different types of reinforcement,overload,and the moving load velocity on the geosynthetic-reinforced embankment.

Geosynthetic-reinforced layerNumerical modelMoving loadEmbankmentDeformationStress

Xuanming Ding、Jinqiao Zhao、Qiang Ou、Jianfei Liu

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College of Civil Engineering,Chongqing University,Chongqing,400045,China

Key Laboratory of New Technology for Construction of Cities in Mountain Area,Chongqing University,Chongqing,400045,China

China United Engineering Corporation Limited,Hangzhou,310052,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaChina Postdoctoral Science FoundationBasal Research Fund Support by Chongqing University

52108299521783122021M693740

2024

10.1016/j.jrmge.2023.04.019

岩石力学与岩土工程学报(英文版)
中国科学院武汉岩土力学所中国岩石力学与工程学会武汉大学

岩石力学与岩土工程学报(英文版)

CSTPCD
影响因子：0.404
ISSN：1674-7755
年,卷(期)：2024.16(2)
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