A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stability analysis of reservoir slopes under fluctuating water levels using the combined finite-discrete element method
https://orcid.org/http://orcid.org/0000-0002-4962-0644
Fluctuating water levels are responsible for many reservoir slope failures. This work develops a novel slope analysis model (Y-slopeW) to evaluate the reservoir slope stability under water–rock coupling effect, based on the combined finite-discrete element method (FDEM). The transient fluid fields under water level fluctuations are first calculated, and then slope stability under water–rock interaction is evaluated in terms of the safety factor using the strength reduction method. Several benchmark tests are proposed to validate the present model. Stability analysis of an ideal slope under reservoir water level fluctuation is analyzed, where the effect of reservoir fluctuation rate and rock permeability coefficient on slope stability are discussed in detail. A practical slope case (Majiagou slope) in the Three Gorges Reservoir area is studied. Results show that the fluctuating reservoir water level plays an important role in slope stability, and a rapid drawdown is the most unfavorable condition to the slope stability. The work detailed herein proposes an efficient tool to better understand the failure mechanism and stability evolution for slopes under water level fluctuation.
Stability analysis of reservoir slopes under fluctuating water levels using the combined finite-discrete element method
https://orcid.org/http://orcid.org/0000-0002-4962-0644
Fluctuating water levels are responsible for many reservoir slope failures. This work develops a novel slope analysis model (Y-slopeW) to evaluate the reservoir slope stability under water–rock coupling effect, based on the combined finite-discrete element method (FDEM). The transient fluid fields under water level fluctuations are first calculated, and then slope stability under water–rock interaction is evaluated in terms of the safety factor using the strength reduction method. Several benchmark tests are proposed to validate the present model. Stability analysis of an ideal slope under reservoir water level fluctuation is analyzed, where the effect of reservoir fluctuation rate and rock permeability coefficient on slope stability are discussed in detail. A practical slope case (Majiagou slope) in the Three Gorges Reservoir area is studied. Results show that the fluctuating reservoir water level plays an important role in slope stability, and a rapid drawdown is the most unfavorable condition to the slope stability. The work detailed herein proposes an efficient tool to better understand the failure mechanism and stability evolution for slopes under water level fluctuation.
Stability analysis of reservoir slopes under fluctuating water levels using the combined finite-discrete element method
https://orcid.org/http://orcid.org/0000-0002-4962-0644
Fluctuating water levels are responsible for many reservoir slope failures. This work develops a novel slope analysis model (Y-slopeW) to evaluate the reservoir slope stability under water–rock coupling effect, based on the combined finite-discrete element method (FDEM). The transient fluid fields under water level fluctuations are first calculated, and then slope stability under water–rock interaction is evaluated in terms of the safety factor using the strength reduction method. Several benchmark tests are proposed to validate the present model. Stability analysis of an ideal slope under reservoir water level fluctuation is analyzed, where the effect of reservoir fluctuation rate and rock permeability coefficient on slope stability are discussed in detail. A practical slope case (Majiagou slope) in the Three Gorges Reservoir area is studied. Results show that the fluctuating reservoir water level plays an important role in slope stability, and a rapid drawdown is the most unfavorable condition to the slope stability. The work detailed herein proposes an efficient tool to better understand the failure mechanism and stability evolution for slopes under water level fluctuation.
Stability analysis of reservoir slopes under fluctuating water levels using the combined finite-discrete element method
Acta Geotech.
Sun, Lei (author) / Tang, Xuhai (author) / Abdelaziz, Aly (author) / Liu, Quansheng (author) / Grasselli, Giovanni (author)
Acta Geotechnica ; 18 ; 5403-5426
2023-10-01
24 pages
Article (Journal)
Electronic Resource
English
Combined finite-discrete element method , Reservoir slope stability , Safety factor , Water–rock coupling , Water level fluctuation Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
Stability Analysis of Slopes by Discrete Finite Element Method
| British Library Conference Proceedings | 2000
Slope Stability Analysis for Filled Slopes Using Finite Element Limit Analysis Method
| British Library Conference Proceedings | 2014
Stability Analysis of Slopes Using Finite Element Method and Genetic Algorithm
| Online Contents | 2018
Stability Analysis of Slopes Using Finite Element Method and Genetic Algorithm
| Online Contents | 2018