Implementation of Climate Change Effects on Slope Stability Analysis

The objective of this study is to determine the impacts of expected climate change on slope stability. For this purpose, the case study of a slope instability, that was triggered in 2021 was selected. The stability analysis was performed considering the theory of rainfall infiltration and using Geo-...

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Main Authors: Tamara Bračko, Bojan Žlender, Primož Jelušič
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/16/8171
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author Tamara Bračko
Bojan Žlender
Primož Jelušič
author_facet Tamara Bračko
Bojan Žlender
Primož Jelušič
author_sort Tamara Bračko
collection DOAJ
description The objective of this study is to determine the impacts of expected climate change on slope stability. For this purpose, the case study of a slope instability, that was triggered in 2021 was selected. The stability analysis was performed considering the theory of rainfall infiltration and using Geo-Studio’s SEEP/W module for the surface infiltration model of the slope. A parametric stability analysis of the slope was conducted to determine the importance of climate change on slope stability. Conditions for changes in volumetric water content, water permeability, porewater pressure, and groundwater flow are important. When soil permeability is low, the factor of safety decreases during rainfall events and on the days following, while when permeability is higher, safety increases after rainfall events. The effect of lower cohesion is nearly linear, with the factor of safety decreasing by 0.1 for every 1 kPa less cohesion. The increase in net infiltration of water may be the most critical factor for slope instability. The results of the analysis indicate that timely reduction of water net infiltration through planting and proper surface water runoff from the upper road and slope would be a relatively simple and inexpensive measure compared to the cost of remediating the landslide, considering expected climate change. Therefore, it is advisable to analyze all slopes with respect to the expected climate change, taking into account the potential impacts of climate change.
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spelling doaj.art-4ed71dfdcab347bcb2f4a7ba9720ac542023-12-01T23:21:35ZengMDPI AGApplied Sciences2076-34172022-08-011216817110.3390/app12168171Implementation of Climate Change Effects on Slope Stability AnalysisTamara Bračko0Bojan Žlender1Primož Jelušič2Faculty of Civil Engineering, Traffic Engineering and Architecture, University of Maribor, Smetanova 17, 2000 Maribor, SloveniaFaculty of Civil Engineering, Traffic Engineering and Architecture, University of Maribor, Smetanova 17, 2000 Maribor, SloveniaFaculty of Civil Engineering, Traffic Engineering and Architecture, University of Maribor, Smetanova 17, 2000 Maribor, SloveniaThe objective of this study is to determine the impacts of expected climate change on slope stability. For this purpose, the case study of a slope instability, that was triggered in 2021 was selected. The stability analysis was performed considering the theory of rainfall infiltration and using Geo-Studio’s SEEP/W module for the surface infiltration model of the slope. A parametric stability analysis of the slope was conducted to determine the importance of climate change on slope stability. Conditions for changes in volumetric water content, water permeability, porewater pressure, and groundwater flow are important. When soil permeability is low, the factor of safety decreases during rainfall events and on the days following, while when permeability is higher, safety increases after rainfall events. The effect of lower cohesion is nearly linear, with the factor of safety decreasing by 0.1 for every 1 kPa less cohesion. The increase in net infiltration of water may be the most critical factor for slope instability. The results of the analysis indicate that timely reduction of water net infiltration through planting and proper surface water runoff from the upper road and slope would be a relatively simple and inexpensive measure compared to the cost of remediating the landslide, considering expected climate change. Therefore, it is advisable to analyze all slopes with respect to the expected climate change, taking into account the potential impacts of climate change.https://www.mdpi.com/2076-3417/12/16/8171climate change adaptationslope stabilityrainfall infiltrationwater net infiltrationseepage analyses
spellingShingle Tamara Bračko
Bojan Žlender
Primož Jelušič
Implementation of Climate Change Effects on Slope Stability Analysis
Applied Sciences
climate change adaptation
slope stability
rainfall infiltration
water net infiltration
seepage analyses
title Implementation of Climate Change Effects on Slope Stability Analysis
title_full Implementation of Climate Change Effects on Slope Stability Analysis
title_fullStr Implementation of Climate Change Effects on Slope Stability Analysis
title_full_unstemmed Implementation of Climate Change Effects on Slope Stability Analysis
title_short Implementation of Climate Change Effects on Slope Stability Analysis
title_sort implementation of climate change effects on slope stability analysis
topic climate change adaptation
slope stability
rainfall infiltration
water net infiltration
seepage analyses
url https://www.mdpi.com/2076-3417/12/16/8171
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AT primozjelusic implementationofclimatechangeeffectsonslopestabilityanalysis