Total seismic analysis of slope considering logarithmic spiral failure surface. Issue 3 (4th May 2022)

• Record Type: Journal Article
• Authors: Hazari, Suman; Ghosh, Sima; Sharma, Richi Prasad
• Is Part Of: Geomechanics and geoengineering. Volume 17:Issue 3(2022)
• Page Start: 959
• Page End: 979
• Publication Date: 2022-05-04
• Subjects: Seismic analysis -- limit equilibrium -- c-ϕ soil -- Rayleigh wave -- logarithmic spiral surface -- numerical analysis; Engineering geology -- Periodicals; Soil mechanics -- Periodicals; Rock mechanics -- Periodicals; Environmental engineering -- Periodicals; 624.151
• DOI: 10.1080/17486025.2021.1903095
• Languages: English
• ISSNs: 1748-6025

Abstract

ABSTRACT: Stability analysis of earth slope is important for the design of slopes in earthquake-prone areas. This paper presents a seismic analysis of c-ϕ soil slope considering the effect of the Rayleigh wave along with primary and shear waves considering all the boundary conditions including a zero-stress boundary condition at the ground surface. The failure surface is assumed as a logarithmic failure surface and the present analysis is conducted using the limit equilibrium method. A two-dimensional numerical model is developed using PLAXIS 2D to validate the analytical model. The results obtained from present analytical and numerical solutions are compared with the results of the available literature. Further, a parametric study is also carried out to highlight the effect of various soil and seismic parameters on the stability of the slope. The present results are more critical for the evaluation of slope stability by incorporating all major seismic waves and non-linear failure surfaces.