A simplified nonlinear coupled Newmark displacement model with degrading yield acceleration for seismic slope stability analysis

2021 ◽  
Author(s):  
Jian Ji ◽  
Chen‐Wei Wang ◽  
Hong‐Zhi Cui ◽  
Xiao‐Yu Li ◽  
Jian Song ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Slope Stability Analysis ◽  
Seismic Slope Stability ◽  
Newmark Displacement ◽  
Yield Acceleration ◽  
Displacement Model

Discussion of “Probabilistic seismic slope stability analysis and design”

2020 ◽  
Vol 57 (7) ◽  
pp. 1103-1108 ◽  
Author(s):  
Pooneh Shah Malekpoor ◽  
Reza Jamshidi Chenari ◽  
Sina Javankhoshdel
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Slope Stability Analysis ◽  
Seismic Slope Stability ◽  
Analysis And Design

scholarly journals Seismic Analysis of Earth Slope Using a Novel Sequential Hybrid Optimization Algorithm

2022 ◽  
Author(s):  
Mohammad Khajehzadeh ◽  
Suraparb Keawsawasvong ◽  
Payam Sarir ◽  
Dlshad Khurshid Khailany
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Optimization Algorithm ◽  
Seismic Analysis ◽  
Slope Stability Analysis ◽  
Pattern Search ◽  
Hybrid Optimization ◽  
Seismic Slope Stability ◽  
Hybrid Optimization Algorithm ◽  
Earth Slope

One of the most important topics in geotechnical engineering is seismic analysis of the earth slope. In this study, a pseudo-static limit equilibrium approach is applied for the slope stability evaluation under earthquake loading based on the Morgenstern–Price method for the general shape of the slip surface. In this approach, the minimum factor of safety corresponding to the critical failure surface should be investigated and it is a complex optimization problem. This paper proposed an effective sequential hybrid optimization algorithm based on the tunicate swarm algorithm (TSA) and pattern search (PS) for seismic slope stability analysis. The proposed method employs the global search ability of TSA and the local search ability of PS. The performance of the new CTSA-PS algorithm is investigated using a set of benchmark test functions and the results are compared with the standard TSA and some other methods from the literature. In addition, two case studies from the literature are considered to evaluate the efficiency of the proposed CTSA-PS for seismic slope stability analysis. The numerical investigations show that the new approach may provide better optimal solutions and outperform previous methods.

Sign in / Sign up

Export Citation Format

Share Document