Wang, Shuyue (2022) Effect of clogged drainage pipes on the stability of railway embankments. Masters thesis, Concordia University.
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Abstract
The rising water level caused by clogged drainage pipes results in instability in railway embankments and creates dangerous riding conditions for passing trains. As such, it is crucial to identify the factors that influence the slope stability of railway embankments subjected to rising water levels and exposed to train traffic. The purpose of this thesis is to study the slope stability of railway embankments by using a coupled Biot model where pore water pressure and stresses are considered simultaneously. Slope stability analyses are performed using two-dimensional finite element shear strength reduction (FE-SSR) models in which the control variable method is employed to study the effect of key parameters (e.g., embankment geometry, water level, and train speed) on the stability of railway embankments. Maximum safe train speeds are calculated for various slope geometries and water levels to maintain a minimum factor of safety of 1.3.
The simulation results illustrate that a flatter slope with a slope ratio of 1V:3H, 3m railway embankment and the 1m natural slope presents the best result in maximum safe train speed. Consequently, a model is developed to evaluate the influence of compromised drainage on the slope stability of a railway embankment under stationary or moving train loads. The findings of this study are then used to determine desirable slope geometry parameters and maximum safe train speeds for railway embankments subjected to rising water levels.
| Divisions: | Concordia University > Gina Cody School of Engineering and Computer Science > Building, Civil and Environmental Engineering |
|---|---|
| Item Type: | Thesis (Masters) |
| Authors: | Wang, Shuyue |
| Institution: | Concordia University |
| Degree Name: | M.A. Sc. |
| Program: | Civil Engineering |
| Date: | 8 June 2022 |
| Thesis Supervisor(s): | Zsaki, Attila Michael |
| Keywords: | Slope stability, Railway embankment, Pipe, FEM |
| ID Code: | 990640 |
| Deposited By: | Shuyue Wang |
| Deposited On: | 27 Oct 2022 14:18 |
| Last Modified: | 27 Oct 2022 14:18 |
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