| Issue |
MATEC Web Conf.
Volume 394, 2024
1st International Conference on Civil and Earthquake Engineering (ICCEE2023)
|
|
|---|---|---|
| Article Number | 01005 | |
| Number of page(s) | 5 | |
| Section | Geotechnics | |
| DOI | https://doi.org/10.1051/matecconf/202439401005 | |
| Published online | 26 April 2024 | |
A comparative study of critical failure surface in unsaturated soil slopes
1 Mining Laboratory, Department of Civil Engineering, University of Tébessa, 12002 Algeria.
2 LGC-ROI, Department of Civil Engineering University of Batna 2, 05078 Batna, Algeria.
3 Department of Civil Engineering, University of Skikda, 21000 Algeria.
* Corresponding author: abderrahim.mhbi@gmail.com
Landslides are rapid downslope movements triggered by factors such as rainfall, earthquakes, or human activity, where factors like relative permeability, air flow, and variations in hydraulic conductivity affect the mechanisms behind rainfall infiltration and landslide occurrence. This study investigates these phenomena using the finite difference method (FDM) and finite element method (FEM) in FLAC and PLAXIS software. These methods account for the coexistence of water and air, including the Two-phase flow option, in evaluating unsaturated slope stability and identifying critical failure surfaces. The efficiency of these approaches is gauged by varying soil parameters and exploring the impact of different values of suction and hydraulic conductivity, as well as soil-water characteristics, on the safety factor. It was observed that there are disparities between both software packages at high suction values, which impact the safety factor. FLAC is noted for its conservative approach and superiority in representing unfavourable conditions.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.