Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall

Failures of treated slope occurring in China are at a continually increasing rate, and the huge number of treated loess slopes is calling for a postevaluation; however, no mature technique is in place. Based on an actual loess slope in Shaanxi Province treated by retaining wall, indoor geotechnical...

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Main Authors: Guodong Liu, Zhijun Zhou, Shiqiang Xu, Wenjing Mi
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/5542727
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author Guodong Liu
Zhijun Zhou
Shiqiang Xu
Wenjing Mi
author_facet Guodong Liu
Zhijun Zhou
Shiqiang Xu
Wenjing Mi
author_sort Guodong Liu
collection DOAJ
description Failures of treated slope occurring in China are at a continually increasing rate, and the huge number of treated loess slopes is calling for a postevaluation; however, no mature technique is in place. Based on an actual loess slope in Shaanxi Province treated by retaining wall, indoor geotechnical and model tests were conducted, revealing the rainwater infiltration process and pressure variations behind the wall, and the processes were then adopted to perform the postevaluation of the treated slope. The results proposed that effectual measures hence needed to be taken so as to avert rainwater infiltrating along the wall face and back or flowing through the wall body, which can soften the soil of the slope bottom. Although the wet front was developed by the rainfall process, it cannot be used as the boundary between saturated and unsaturated areas. Despite the peculiarly large soil pressure upon the wall back at the top layer, the soil pressure increases to a large value and then decreases with the depth. The model test results and investigation results were used to conduct the postevaluation of the prototype slope, which formed a postevaluation frame relevant to other slope postevaluations.
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publishDate 2021-01-01
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series Advances in Civil Engineering
spelling doaj-art-5d39c162a91649e7984d7080ce83cab52025-02-03T01:28:32ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/55427275542727Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term RainfallGuodong Liu0Zhijun Zhou1Shiqiang Xu2Wenjing Mi3School of Highway, Chang’an University, Xi’an 710046, ChinaSchool of Highway, Chang’an University, Xi’an 710046, ChinaSchool of Highway, Chang’an University, Xi’an 710046, ChinaCollege of Urban, Rural Planning and Architectural Engineering, Shangluo University, Shangluo 726000, ChinaFailures of treated slope occurring in China are at a continually increasing rate, and the huge number of treated loess slopes is calling for a postevaluation; however, no mature technique is in place. Based on an actual loess slope in Shaanxi Province treated by retaining wall, indoor geotechnical and model tests were conducted, revealing the rainwater infiltration process and pressure variations behind the wall, and the processes were then adopted to perform the postevaluation of the treated slope. The results proposed that effectual measures hence needed to be taken so as to avert rainwater infiltrating along the wall face and back or flowing through the wall body, which can soften the soil of the slope bottom. Although the wet front was developed by the rainfall process, it cannot be used as the boundary between saturated and unsaturated areas. Despite the peculiarly large soil pressure upon the wall back at the top layer, the soil pressure increases to a large value and then decreases with the depth. The model test results and investigation results were used to conduct the postevaluation of the prototype slope, which formed a postevaluation frame relevant to other slope postevaluations.http://dx.doi.org/10.1155/2021/5542727
spellingShingle Guodong Liu
Zhijun Zhou
Shiqiang Xu
Wenjing Mi
Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
Advances in Civil Engineering
title Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
title_full Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
title_fullStr Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
title_full_unstemmed Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
title_short Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall
title_sort experimental assessments of treating effect on retaining walls for loess slopes under long term rainfall
url http://dx.doi.org/10.1155/2021/5542727
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