Active Soil Pressure of Unsaturated Soil under Rainfall Conditions

To study the change in unsaturated active earth pressure under rainfall conditions, based on the thin layer element method and shear strength formula of unsaturated soil, Iverson analysis was used to improve the traditional Coulomb earth pressure theory, and the active earth pressure formula of unsa...

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Main Authors: Qizhi Hu, Yugang Li
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2022/7039420
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author Qizhi Hu
Yugang Li
author_facet Qizhi Hu
Yugang Li
author_sort Qizhi Hu
collection DOAJ
description To study the change in unsaturated active earth pressure under rainfall conditions, based on the thin layer element method and shear strength formula of unsaturated soil, Iverson analysis was used to improve the traditional Coulomb earth pressure theory, and the active earth pressure formula of unsaturated soil considering the change in matric suction was derived under rainfall infiltration conditions. The results show that the active soil pressure of unsaturated soil considering rainfall is greater than that without rainfall. With the continuous occurrence of rainfall infiltration, the active soil pressure of unsaturated soil first increases, then decreases and finally tends to be stable. The above phenomenon is caused by the change in matric suction during rainfall infiltration.
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institution Kabale University
issn 1687-8094
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-baa1ae667026410691fb76c7f74a9aad2025-02-03T01:00:47ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/7039420Active Soil Pressure of Unsaturated Soil under Rainfall ConditionsQizhi Hu0Yugang Li1School of Civil EngineeringSchool of Civil EngineeringTo study the change in unsaturated active earth pressure under rainfall conditions, based on the thin layer element method and shear strength formula of unsaturated soil, Iverson analysis was used to improve the traditional Coulomb earth pressure theory, and the active earth pressure formula of unsaturated soil considering the change in matric suction was derived under rainfall infiltration conditions. The results show that the active soil pressure of unsaturated soil considering rainfall is greater than that without rainfall. With the continuous occurrence of rainfall infiltration, the active soil pressure of unsaturated soil first increases, then decreases and finally tends to be stable. The above phenomenon is caused by the change in matric suction during rainfall infiltration.http://dx.doi.org/10.1155/2022/7039420
spellingShingle Qizhi Hu
Yugang Li
Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
Advances in Civil Engineering
title Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
title_full Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
title_fullStr Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
title_full_unstemmed Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
title_short Active Soil Pressure of Unsaturated Soil under Rainfall Conditions
title_sort active soil pressure of unsaturated soil under rainfall conditions
url http://dx.doi.org/10.1155/2022/7039420
work_keys_str_mv AT qizhihu activesoilpressureofunsaturatedsoilunderrainfallconditions
AT yugangli activesoilpressureofunsaturatedsoilunderrainfallconditions