Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration

With the objective of disaster prevention and the control of geotechnical structures under rainfall environments, an experimental method was adopted to study the mechanical behavior of the geogrid–soil interface. A series of monotonic direct shear tests under different working conditions were carrie...

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Main Authors: Yongliang Lin, Yingying Wang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/2/705
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author Yongliang Lin
Yingying Wang
author_facet Yongliang Lin
Yingying Wang
author_sort Yongliang Lin
collection DOAJ
description With the objective of disaster prevention and the control of geotechnical structures under rainfall environments, an experimental method was adopted to study the mechanical behavior of the geogrid–soil interface. A series of monotonic direct shear tests under different working conditions were carried out to analyze the effects of normal stresses, shear rates and infiltration time on the shear characteristics of the geogrid–soil interface, and to investigate the interaction mechanism of the geogrid–soil interface under rainfall infiltration by means of an independently adapted experimental apparatus to simulate the actual rainfall infiltration situation. The results show that the soil under rainfall infiltration conforms to the Mohr–Coulomb criterion; with the increase in rainfall infiltration time, the peak shear stress at the geogrid–soil interface decreases, and the cohesion and friction angle of the geogrid–soil interface are significantly reduced, and the cohesion decreases by 45.5%, and friction angle decreases by 22.9% when the shear rate is 1.5 mm/min. The research results can provide theoretical and practical guidance for more accurate prediction and response to the effects of rainfall on soil properties in engineering practice. However, the research is only targeted at specific conditions. The variability of geotechnical engineering in aspects such as different soil types, various geosynthetic materials and diverse environmental conditions still needs to be further explored in depth, so as to contribute to the sustainable development of global geotechnical engineering and the effective prevention of disasters.
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spelling doaj-art-f1ed871785484837ab36bd868f438bdd2025-01-24T13:20:32ZengMDPI AGApplied Sciences2076-34172025-01-0115270510.3390/app15020705Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall InfiltrationYongliang Lin0Yingying Wang1School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, ChinaSchool of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, ChinaWith the objective of disaster prevention and the control of geotechnical structures under rainfall environments, an experimental method was adopted to study the mechanical behavior of the geogrid–soil interface. A series of monotonic direct shear tests under different working conditions were carried out to analyze the effects of normal stresses, shear rates and infiltration time on the shear characteristics of the geogrid–soil interface, and to investigate the interaction mechanism of the geogrid–soil interface under rainfall infiltration by means of an independently adapted experimental apparatus to simulate the actual rainfall infiltration situation. The results show that the soil under rainfall infiltration conforms to the Mohr–Coulomb criterion; with the increase in rainfall infiltration time, the peak shear stress at the geogrid–soil interface decreases, and the cohesion and friction angle of the geogrid–soil interface are significantly reduced, and the cohesion decreases by 45.5%, and friction angle decreases by 22.9% when the shear rate is 1.5 mm/min. The research results can provide theoretical and practical guidance for more accurate prediction and response to the effects of rainfall on soil properties in engineering practice. However, the research is only targeted at specific conditions. The variability of geotechnical engineering in aspects such as different soil types, various geosynthetic materials and diverse environmental conditions still needs to be further explored in depth, so as to contribute to the sustainable development of global geotechnical engineering and the effective prevention of disasters.https://www.mdpi.com/2076-3417/15/2/705simple shearreinforced soilinfiltration timemoisture contentshear characteristicsstrength parameter
spellingShingle Yongliang Lin
Yingying Wang
Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
Applied Sciences
simple shear
reinforced soil
infiltration time
moisture content
shear characteristics
strength parameter
title Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
title_full Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
title_fullStr Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
title_full_unstemmed Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
title_short Research on Mechanical Behavior of Geogrid–Soil Interface Under Rainfall Infiltration
title_sort research on mechanical behavior of geogrid soil interface under rainfall infiltration
topic simple shear
reinforced soil
infiltration time
moisture content
shear characteristics
strength parameter
url https://www.mdpi.com/2076-3417/15/2/705
work_keys_str_mv AT yonglianglin researchonmechanicalbehaviorofgeogridsoilinterfaceunderrainfallinfiltration
AT yingyingwang researchonmechanicalbehaviorofgeogridsoilinterfaceunderrainfallinfiltration