Three-dimensional slope stability analysis method based on perturbation displacement isosurface

Three-dimensional (3D) slope stability analysis is a difficult point in the field of slope stability analysis in geotechnical engineering, and using 3D methods for slope stability analysis is of theoretical and practical significance. First, finite difference method was used to establish a numerical...

Full description

Saved in:
Bibliographic Details
Published in:Natural hazards (Dordrecht) 2023-03, Vol.116 (2), p.2157-2171
Main Authors: Shi, Chong, Ma, Jincheng, Zhou, Yuxian, Zhang, Yiping, Pian, Junbao
Format: Article
Language:English
Subjects:
Analysis
Civil Engineering
Dimensional analysis
Dimensional stability
Earth and Environmental Science
Earth Sciences
Engineering
Environmental Management
Equilibrium
Finite difference method
Geophysics/Geodesy
Geotechnical engineering
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Mathematical models
Methods
Natural Hazards
Numerical models
Original Paper
Perturbation
Safety
Safety factors
Shear strength
Simulation
Sliding
Slope stability
Slumping
Stability analysis
Surface stability
Three dimensional analysis
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three-dimensional (3D) slope stability analysis is a difficult point in the field of slope stability analysis in geotechnical engineering, and using 3D methods for slope stability analysis is of theoretical and practical significance. First, finite difference method was used to establish a numerical model of the slope, and then a tiny disturbance was applied to the balanced slope. The displacement isosurface generated after the disturbance was regarded as the potential sliding surface. Finally, the stability safety factor of multiple potential sliding surfaces was calculated, with the minimum value as the slope safety factor, and the corresponding sliding surface as the critical sliding surface. Results showed that the 3D slope stability analysis method based on the perturbation equivalence surface could accurately and efficiently obtain the most dangerous sliding surface and safety factor. It was reasonable and straightforward. It exhibited strong logic and clear physical meaning. The critical sliding surface obtained was also consistent with the actual project. This research could provide new ideas for calculating 3D slope stability in geotechnical engineering.
ISSN:0921-030X
1573-0840
DOI:10.1007/s11069-022-05758-1