Finite element limit analysis of the seismic bearing capacity of strip footing adjacent to excavation in c-φ soil

In this study, several effective parameters and geometrical features were considered to present the design charts and the reduction coefficients tables to obtain the bearing capacity of a strip footing placed near a c-ϕ excavation under static and seismic conditions by using Finite Element Limit Ana...

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Bibliographic Details
Published in:Geomechanics and geoengineering : an international journal 2022-01, Vol.17 (1), p.246-259
Main Authors: Beygi, Majid, Keshavarz, Amin, Abbaspour, Mohsen, Vali, Ramin, Saberian, Mohammad, Li, Jie
Format: Article
Language:English
Subjects:
excavation
failure pattern
finite element limit analysis
Seismic bearing capacity
strip footing
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Summary:In this study, several effective parameters and geometrical features were considered to present the design charts and the reduction coefficients tables to obtain the bearing capacity of a strip footing placed near a c-ϕ excavation under static and seismic conditions by using Finite Element Limit Analysis (FELA). The effects of setback distance to footing width ratio (L/B), cohesion (c), soil friction angle (ϕ), pseudo-static horizontal earthquake coefficient (k h ), and the height of the excavation to the footing width ratio (H/B) on the bearing capacity and failure mechanism were studied. Also, a design procedure and example of its application were presented to obtain the static and seismic bearing capacities of the strip footing placed near the c-ϕ excavation based on the design charts and the reduction coefficients tables.
ISSN:1748-6025
1748-6033
DOI:10.1080/17486025.2020.1728396